CVE-2026-3055

Overview

NetScaler
ADC

23 Mar 2026

Published

24 Mar 2026

Updated

CVSS v4.0

CRITICAL (9.3)

EPSS

0.03%

MITRE

KEV

Description

Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread

Statistics

20 Posts
11 Interactions

Last activity: 1 hour ago

Fediverse

Erik Jonker @ErikJonker

It just never stops those Citrix vulnerabilities...
https://thecyberexpress.com/cve-2026-3055-citrix-netscaler-saml-idp/
#citrix #cybersecurity #cve

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8h ago

Patrick C Miller :donor: @patrickcmiller

Urgent Alert: NetScaler bug CVE-2026-3055 probed by attackers could leak sensitive data https://securityaffairs.com/190131/hacking/urgent-alert-netscaler-bug-cve-2026-3055-probed-by-attackers-could-leak-sensitive-data.html

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16h ago

:mastodon: decio @decio

⚠️ CVE-2026-3055 / Citrix NetScaler : la reconnaissance est en cours.

Des activités de reconnaissance ciblent déjà les appliances exposées, avec notamment des requêtes vers /cgi/GetAuthMethods pour identifier les configs exploitables, en particulier les environnements SAML IdP.
GBHackers relaie ces observations
👇
https://gbhackers.com/hackers-probe-citrix-netscaler-systems-cve-2026-3055-exploitation/

Côté exposition, ONYPHE recense plus de 18000 IP uniques sur une version vulnérable, (dont environ +800 en Suisse).
👇
https://www.linkedin.com/posts/onyphe_vulnerability-asm-attacksurfacemanagement-activity-7442250727046987776-ofYV

Le pattern rappelle clairement les précédents CitrixBleed : si du NetScaler est encore exposé, la fenêtre avant exploitation de masse pourrait être très courte.

#CyberVeille #CVE_2026_3055 #Citrix

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10h ago

:mastodon: decio @decio

la vulnérabilité est à considérer comme activement exploitée selon watchTowr.

ils ont publié une analyse technique détaillée de la faille, utile pour mieux comprendre le mécanisme d’exploitation
👇
https://labs.watchtowr.com/please-we-beg-just-one-weekend-free-of-appliances-citrix-netscaler-cve-2026-3055-memory-overread-part-2/

Pour les équipes concernées, on n’est plus dans l’anticipation mais dans la réaction rapide.

#CyberVeille #Citrix #CVE_2026_3055

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9h ago

Günter Born @gborn

Jemand mit Citrix (Netscaler oder Gateway) unterwegs und ungepatcht? Schwachstelle CVE-2026-3055 wird angegriffen

https://borncity.com/blog/2026/03/30/schwachstelle-cve-2026-3055-in-citrix-netscaler-adc-und-gateway-wird-angegriffen/

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3h ago

Bluesky

/r/netsec @r-netsec-bot.bsky.social

Please, We Beg, Just One Weekend Free Of Appliances (Citrix NetScaler CVE-2026-3055 Memory Overread Part 2) - watchTowr Labs

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6
21h ago

キタきつね @kitafox.bsky.social

Citrix NetScalerは、CVE-2026-3055（CVSS 9.3）メモリオーバーリードバグに対するアクティブな調査中です Citrix NetScaler Under Active Recon for CVE-2026-3055 (CVSS 9.3) Memory Overread Bug #HackerNews (Mar 28) thehackernews.com/2026/03/citr...

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19h ago

tamosan @tamosan.bsky.social

既に偵察活動が活発になっているようす：Citrix NetScaler Under Active Recon for CVE-2026-3055 (CVSS 9.3) Memory Overread Bug https://thehackernews.com/2026/03/citrix-netscaler-under-active-recon-for.html

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15h ago

Sami Laiho @samilaiho.com

The Sequels Are Never As Good, But We're Still In Pain (Citrix NetScaler CVE-2026-3055 Memory Overread) labs.watchtowr.com/the-sequels-...

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6h ago

CyberVeille @cyberveille-ch.bsky.social

📢 CVE-2026-3055 : Citrix NetScaler – Seconde vulnérabilité de fuite mémoire exploitée in-the-wild 📝 ## 🔍 Contexte Publié le 30 mars 2026 … https://cyberveille.ch/posts/2026-03-30-cve-2026-3055-citrix-netscaler-seconde-vulnerabilite-de-fuite-memoire-exploitee-in-the-wild/ #CVE_2026_3055 #Cyberveille

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4h ago

CyberVeille @cyberveille-ch.bsky.social

📢 CVE-2026-3055 : Vulnérabilité critique sur Citrix NetScaler déjà ciblée par des acteurs malveillants 📝 ## 🔍 Contexte Publié le 3… https://cyberveille.ch/posts/2026-03-30-cve-2026-3055-vulnerabilite-critique-sur-citrix-netscaler-deja-ciblee-par-des-acteurs-malveillants/ #CVE_2026_3055 #Cyberveille

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4h ago

piggo @pigondrugs.bsky.social

~Cybergcca~ CCCS issued 10 advisories, warning of critical, actively exploited vulnerabilities in Fortinet FortiClientEMS and Citrix NetScaler. - IOCs: CVE-2026-21643, CVE-2026-3055 - #CVE #Citrix #Fortinet #ThreatIntel

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1h ago

CVE-2025-53521

Overview

F5
BIG-IP

15 Oct 2025

Published

29 Mar 2026

Updated

CVSS v3.1

CRITICAL (9.8)

EPSS

19.16%

MITRE

KEV

Description

When a BIG-IP APM access policy is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Statistics

10 Posts

Last activity: Last hour

Fediverse

Capstone Technologies Group @CapTechGroup

Critical alert: Attackers are actively exploiting a remote code execution vulnerability in BIG-IP APM systems (CVE-2025-53521). Financial services, government, and public sector organizations are targeted. Understand the threat landscape and essential defensive measures.

https://captechgroup.com/about-us/threat-intelligence-center/rce-vulnerability-in-big-ip-apm-systems-cve-2025-5-98cd5c

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19h ago

Tom Sellers @TomSellers

@offseq There has literally been a CVE and patch for this since October - https://www.runzero.com/blog/f5-bigip-instances/#latest-f5-big-ip-vulnerability-cve-2025-53521

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6h ago

Bluesky

r/blueteamsec bot @r-blueteamsec.bsky.social

K000156741: BIG-IP APM vulnerability CVE-2025-53521 - from Oct - previously a DoS with CVSS scores of 7.5 (CVSS v3.1) and 8.7 (CVSS v4.0) - re-categorized to an RCE with CVSS scores of 9.8 and 9.3

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20h ago

キタきつね @kitafox.bsky.social

CISAが既知の悪用された脆弱性を1件カタログに追加 CISA Adds One Known Exploited Vulnerability to Catalog #CISA (Mar 27) CVE-2025-53521 F5 BIG-IPのリモートコード実行の脆弱性 www.cisa.gov/news-events/...

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19h ago

キタきつね @kitafox.bsky.social

攻撃者は、BIG-IP APMシステムのリモートコード実行（RCE）の脆弱性（CVE-2025-53521）を悪用しています Attackers are exploiting RCE vulnerability in BIG-IP APM systems (CVE-2025-53521) #HelpNetSecurity (Mar 28) www.helpnetsecurity.com/2026/03/28/b...

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19h ago

キタきつね @kitafox.bsky.social

CISAは、F5 BIG-IP APMの脆弱性を悪用した攻撃が活発に行われたことを受け、CVE-2025-53521をKEVに追加した CISA Adds CVE-2025-53521 to KEV After Active F5 BIG-IP APM Exploitation #HackerNews (Mar 28) thehackernews.com/2026/03/cisa...

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19h ago

Information Security Briefly @infosecbriefly.bsky.social

CISA warns of exploitation of a critical F5 BIG-IP vulnerability, CVE-2025-53521, allowing remote code execution on affected systems.

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10h ago

CyberVeille @cyberveille-ch.bsky.social

📢 Exploitation active de CVE-2025-53521 : F5 BIG-IP APM reclassifié en RCE critique 📝 ## 🔍 Contexte Source : BleepingComputer, publié le 30 mars 2026. https://cyberveille.ch/posts/2026-03-30-exploitation-active-de-cve-2025-53521-f5-big-ip-apm-reclassifie-en-rce-critique/ #CISA_KEV #Cyberveille

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5h ago

piggo @pigondrugs.bsky.social

~Ncsc~ Actively exploited unauthenticated RCE (CVE-2025-53521) affects F5 BIG-IP APM; immediate mitigation and compromise investigation required. - IOCs: CVE-2025-53521 - #CVE202553521 #F5 #ThreatIntel

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4h ago

Cybersecurity News Everyday @hendryadrian.bsky.social

F5 reclassifies BIG-IP APM flaw CVE-2025-53521 from DoS to critical RCE after active exploitation deploying webshells on unpatched devices. Over 240K instances exposed online. #BIGIPAPM #RemoteCodeExecution #USA

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Last hour

CVE-2026-21643

Overview

Fortinet
FortiClientEMS

06 Feb 2026

Published

30 Mar 2026

Updated

CVSS v3.1

CRITICAL (9.1)

EPSS

0.05%

MITRE

KEV

Description

An improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.4 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.

Statistics

4 Posts
1 Interaction

Last activity: Last hour

Bluesky

Help Net Security @helpnetsecurity.com

Critical Fortinet FortiClient EMS bug under active attack (CVE-2026-21643) 📖 Read more: www.helpnetsecurity.com/2026/03/30/f... #cybersecurity #cybersecuritynews #enterprise #vulnerability @bishopfox.bsky.social

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4h ago

Cybersecurity News Everyday @hendryadrian.bsky.social

Critical SQL injection CVE-2026-21643 in Fortinet FortiClient EMS 7.4.4 is actively exploited, allowing unauthenticated code execution via EMS web interface. Patch to 7.4.5+ to fix thousands exposed globally. #FortinetFlaw #SQLInjection #USA

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6h ago

Red Siege @redsiege.com

Critical bug (CVE-2026-21643) in Fortinet FortiClient EMS is already being exploited. Unauthenticated attackers can run code via the web interface, and thousands of instances are exposed. Patch ASAP (7.4.5+). via @bleepingcomputer.com www.bleepingcomputer.com/news/securit...

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Last hour

piggo @pigondrugs.bsky.social

~Cybergcca~ CCCS issued 10 advisories, warning of critical, actively exploited vulnerabilities in Fortinet FortiClientEMS and Citrix NetScaler. - IOCs: CVE-2026-21643, CVE-2026-3055 - #CVE #Citrix #Fortinet #ThreatIntel

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1h ago

CVE-2026-3587

Overview

WAGO
Lean Managed Switch 852-1812

23 Mar 2026

Published

24 Mar 2026

Updated

CVSS v3.1

CRITICAL (10.0)

EPSS

0.12%

MITRE

KEV

Description

An unauthenticated remote attacker can exploit a hidden function in the CLI prompt to escape the restricted interface, leading to full compromise of the device.

Statistics

1 Post
15 Interactions

Last activity: 8 hours ago

Fediverse

Dickenhobelix @dickenhobelix

Hui, CVE für einen Wago Switch mit CVSS 10.0: An unauthenticated remote attacker can exploit a hidden function in the CLI prompt to escape the restricted interface, leading to full compromise of the device.

Bingo!

FTR: CVE-2026-3587

5
10
0
8h ago

CVE-2026-31893

Overview

Pending

Pending

Published

Pending

Updated

CVSS

Pending

EPSS

Pending

MITRE

KEV

Description

This candidate has been reserved by a CVE Numbering Authority (CNA). This record will be updated by the assigning CNA once details are available.

Statistics

1 Post
4 Interactions

Last activity: 4 hours ago

Fediverse

raptor :C_H: @raptor

Anyone knows anything more about this #Tunnelblick #vulnerability?

"CVE-2026-31893 describes a serious Tunnelblick vulnerability.

This vulnerability is present in all versions of all Tunnelblick versions 3.3beta26 through 9.0beta01.

Tunnelblick 8.0.1 and 9.0beta02 contain fixes for the vulnerability.

The CVE is expected to be published and this page updated on or before 2026-03-27."

https://tunnelblick.net/CVE-2026-31893.html

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2
0
4h ago

CVE-2025-15036

Overview

mlflow
mlflow/mlflow

30 Mar 2026

Published

30 Mar 2026

Updated

CVSS v3.0

CRITICAL (9.6)

EPSS

0.05%

MITRE

KEV

Description

A path traversal vulnerability exists in the `extract_archive_to_dir` function within the `mlflow/pyfunc/dbconnect_artifact_cache.py` file of the mlflow/mlflow repository. This vulnerability, present in versions before v3.7.0, arises due to the lack of validation of tar member paths during extraction. An attacker with control over the tar.gz file can exploit this issue to overwrite arbitrary files or gain elevated privileges, potentially escaping the sandbox directory in multi-tenant or shared cluster environments.

Statistics

1 Post
3 Interactions

Last activity: 9 hours ago

Bluesky

BaseFortify.eu @basefortify.bsky.social

🚨 CVE-2025-15036 (CRITICAL 9.6) MLflow archive extraction flaw allows attackers to overwrite arbitrary files via path traversal (“../”) in tar.gz files, potentially leading to privilege escalation and sandbox escape. 🔎 basefortify.eu/cve_reports/... #CVE #CyberSecurity #MLflow #PathTraversal

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9h ago

CVE-2025-1727

Overview

End-of-Train and Head-of-Train remote linking protocol
End-of-Train and Head-of-Train remote linking protocol

10 Jul 2025

Published

11 Jul 2025

Updated

CVSS v3.1

HIGH (8.1)

EPSS

0.03%

MITRE

KEV

Description

The protocol used for remote linking over RF for End-of-Train and Head-of-Train (also known as a FRED) relies on a BCH checksum for packet creation. It is possible to create these EoT and HoT packets with a software defined radio and issue brake control commands to the EoT device, disrupting operations or potentially overwhelming the brake systems.

Statistics

1 Post
3 Interactions

Last activity: 8 hours ago

Fediverse

Dickenhobelix @dickenhobelix

CVE-2025-1727 makes trains go brrrrrrrrrrrt

Eingleisübung wann?

1
2
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8h ago

CVE-2026-0848

Overview

nltk
nltk/nltk

05 Mar 2026

Published

06 Mar 2026

Updated

CVSS v3.0

CRITICAL (10.0)

EPSS

0.48%

MITRE

KEV

Description

NLTK versions <=3.9.2 are vulnerable to arbitrary code execution due to improper input validation in the StanfordSegmenter module. The module dynamically loads external Java .jar files without verification or sandboxing. An attacker can supply or replace the JAR file, enabling the execution of arbitrary Java bytecode at import time. This vulnerability can be exploited through methods such as model poisoning, MITM attacks, or dependency poisoning, leading to remote code execution. The issue arises from the direct execution of the JAR file via subprocess with unvalidated classpath input, allowing malicious classes to execute when loaded by the JVM.

Statistics

1 Post
1 Interaction

Last activity: 3 hours ago

Fediverse

Claudio C @cktodon

Cómo un fallo en una librería de #Python puede comprometer sistemas de #IA (CVE-2026-0848)

https://unaaldia.hispasec.com/2026/03/como-un-fallo-en-una-libreria-de-python-puede-comprometer-sistemas-de-ia-cve-2026-0848.html?utm_source=rss&amp

1
0
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3h ago

CVE-2026-4438

Overview

The GNU C Library
glibc

20 Mar 2026

Published

23 Mar 2026

Updated

CVSS

Pending

EPSS

0.03%

MITRE

KEV

Description

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.

Statistics

1 Post
5 Interactions

Last activity: 6 hours ago

Fediverse

grawity @grawity

CVE-2026-4438 reminds me of that time I discovered BIND's "check-names no" and found out that "freenode/staff/foo.example.com" was a valid rDNS entry according to the ircd

0
5
0
6h ago

CVE-2026-4176

Overview

SHAY
perl
perl

29 Mar 2026

Published

30 Mar 2026

Updated

CVSS

Pending

EPSS

0.01%

MITRE

KEV

Description

Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib. Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.

Statistics

1 Post
1 Interaction

Last activity: 19 hours ago

Fediverse

Offensive Sequence @offseq

⚠️ CVE-2026-4176 (HIGH): Perl Compress::Raw::Zlib uses a vulnerable zlib, risking memory corruption or code execution. Affects 5.9.4 – 5.43.0. Update to Compress::Raw::Zlib 2.221+ ASAP! https://radar.offseq.com/threat/cve-2026-4176-cwe-1395-dependency-on-vulnerable-th-556b643e #OffSeq #Perl #Vuln #SysAdmin

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1
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19h ago