🚨 2 critical authentication bypass and remote command execution vulnerabilities in Solarwinds WHD have been disclosed.

Vulnerability detection scripts can be found below:
CVE-2025-40552:
https://github.com/rxerium/rxerium-templates/blob/main/2025/CVE-2025-40552.yaml

CVE-2025-40554:
https://github.com/rxerium/rxerium-templates/blob/main/2025/CVE-2025-40554.yaml

At the time of writing there are no signs of active exploitation in the wild but it is strongly recommended that you patch as per Solarwind's security advisory:
https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm

SolarWinds has just announced four high-severity vulnerabilities in its Web Help Desk (WHD) software that could lead to full system takeover.

These flaws include unauthenticated Remote Code Execution (RCE) via insecure deserialization and multiple Authentication Bypasses, allowing attackers to execute protected methods without any credentials.

CVE-2025-40551 & CVE-2025-40553 (Unauthenticated RCE)
CVE-2025-40552 & CVE-2025-40554 (Auth Bypass)

https://www.thehackerwire.com/solarwinds-patches-critical-rce-and-auth-bypass-flaws-in-web-help-desk/

SolarWinds warns of critical Web Help Desk RCE, auth bypass flaws
https://www.bleepingcomputer.com/news/security/solarwinds-warns-of-critical-web-help-desk-rce-auth-bypass-flaws/

SolarWinds has released security updates to patch critical authentication
bypass and remote command execution vulnerabilities in its Web Help Desk IT
help desk software.

The authentication bypass security flaws (tracked as CVE-2025-40552 and
CVE-2025-40554) patched today by SolarWinds were reported by watchTowr's Piotr
Bazydlo and can be exploited by remote unauthenticated threat actors in
low-complexity attacks.

Bazydlo also found and reported a critical remote code execution (RCE) flaw
(CVE-2025-40553) stemming from an untrusted data deserialization weakness that
can enable attackers without privileges to run commands on vulnerable hosts.
A second RCE vulnerability (CVE-2025-40551) reported by Horizon3.ai security
researcher Jimi Sebree can also enable unauthenticated attackers to execute
commands remotely.

🚨 2 critical authentication bypass and remote command execution vulnerabilities in Solarwinds WHD have been disclosed.

Vulnerability detection scripts can be found below:
CVE-2025-40552:
https://github.com/rxerium/rxerium-templates/blob/main/2025/CVE-2025-40552.yaml

CVE-2025-40554:
https://github.com/rxerium/rxerium-templates/blob/main/2025/CVE-2025-40554.yaml

At the time of writing there are no signs of active exploitation in the wild but it is strongly recommended that you patch as per Solarwind's security advisory:
https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm

SolarWinds has just announced four high-severity vulnerabilities in its Web Help Desk (WHD) software that could lead to full system takeover.

These flaws include unauthenticated Remote Code Execution (RCE) via insecure deserialization and multiple Authentication Bypasses, allowing attackers to execute protected methods without any credentials.

CVE-2025-40551 & CVE-2025-40553 (Unauthenticated RCE)
CVE-2025-40552 & CVE-2025-40554 (Auth Bypass)

https://www.thehackerwire.com/solarwinds-patches-critical-rce-and-auth-bypass-flaws-in-web-help-desk/

SolarWinds warns of critical Web Help Desk RCE, auth bypass flaws
https://www.bleepingcomputer.com/news/security/solarwinds-warns-of-critical-web-help-desk-rce-auth-bypass-flaws/

SolarWinds has released security updates to patch critical authentication
bypass and remote command execution vulnerabilities in its Web Help Desk IT
help desk software.

The authentication bypass security flaws (tracked as CVE-2025-40552 and
CVE-2025-40554) patched today by SolarWinds were reported by watchTowr's Piotr
Bazydlo and can be exploited by remote unauthenticated threat actors in
low-complexity attacks.

Bazydlo also found and reported a critical remote code execution (RCE) flaw
(CVE-2025-40553) stemming from an untrusted data deserialization weakness that
can enable attackers without privileges to run commands on vulnerable hosts.
A second RCE vulnerability (CVE-2025-40551) reported by Horizon3.ai security
researcher Jimi Sebree can also enable unauthenticated attackers to execute
commands remotely.

In allen Versionen von Microsoft Office gibt es die Schwachstelle CVE-2026-21509. Es ist nicht ganz klar, was Microsoft mit Notfall-Patches genau gemacht hat. ACROS Security hat mit 0patch das Übel bei der Wurzel gepackt und sperrt das OLE-Objekt.

https://borncity.com/blog/2026/01/29/0patch-micropatch-fuer-microsoft-office-schwachstelle-cve-2026-21509/

SolarWinds has just announced four high-severity vulnerabilities in its Web Help Desk (WHD) software that could lead to full system takeover.

These flaws include unauthenticated Remote Code Execution (RCE) via insecure deserialization and multiple Authentication Bypasses, allowing attackers to execute protected methods without any credentials.

CVE-2025-40551 & CVE-2025-40553 (Unauthenticated RCE)
CVE-2025-40552 & CVE-2025-40554 (Auth Bypass)

https://www.thehackerwire.com/solarwinds-patches-critical-rce-and-auth-bypass-flaws-in-web-help-desk/

SolarWinds warns of critical Web Help Desk RCE, auth bypass flaws
https://www.bleepingcomputer.com/news/security/solarwinds-warns-of-critical-web-help-desk-rce-auth-bypass-flaws/

SolarWinds has released security updates to patch critical authentication
bypass and remote command execution vulnerabilities in its Web Help Desk IT
help desk software.

The authentication bypass security flaws (tracked as CVE-2025-40552 and
CVE-2025-40554) patched today by SolarWinds were reported by watchTowr's Piotr
Bazydlo and can be exploited by remote unauthenticated threat actors in
low-complexity attacks.

Bazydlo also found and reported a critical remote code execution (RCE) flaw
(CVE-2025-40553) stemming from an untrusted data deserialization weakness that
can enable attackers without privileges to run commands on vulnerable hosts.
A second RCE vulnerability (CVE-2025-40551) reported by Horizon3.ai security
researcher Jimi Sebree can also enable unauthenticated attackers to execute
commands remotely.

🚨 2 new vulnerability scripts created for the n8n vulnerabilities disclosed today:

CVE-2026-1470:
https://github.com/rxerium/rxerium-templates/blob/main/2026/CVE-2026-1470.yaml

CVE-2026-0863:
https://github.com/rxerium/rxerium-templates/blob/main/2026/CVE-2026-0863.yaml

Happy hunting.

n8n – CVE-2026-1470 et CVE-2026-0863 : deux nouvelles failles patchées, comment se protéger ? https://www.it-connect.fr/n8n-cve-2026-1470-et-cve-2026-0863-patchs-de-securite/ #ActuCybersécurité #Cybersécurité #Vulnérabilité

🚨 2 new vulnerability scripts created for the n8n vulnerabilities disclosed today:

CVE-2026-1470:
https://github.com/rxerium/rxerium-templates/blob/main/2026/CVE-2026-1470.yaml

CVE-2026-0863:
https://github.com/rxerium/rxerium-templates/blob/main/2026/CVE-2026-0863.yaml

Happy hunting.

n8n – CVE-2026-1470 et CVE-2026-0863 : deux nouvelles failles patchées, comment se protéger ? https://www.it-connect.fr/n8n-cve-2026-1470-et-cve-2026-0863-patchs-de-securite/ #ActuCybersécurité #Cybersécurité #Vulnérabilité

Unveiling the Weaponized Web Shell EncystPHP
https://www.fortinet.com/blog/threat-research/unveiling-the-weaponized-web-shell-encystphp

FortiGuard Labs has discovered a web shell that we named “EncystPHP.” It
features several advanced capabilities, including remote command execution,
persistence mechanisms, and web shell deployment. Incidents were launched in
early December last year and propagated via exploitation of the FreePBX
vulnerability CVE-2025-64328.

Its malicious activity appears to be associated with the hacker group
INJ3CTOR3, first identified in 2020, which targeted CVE-2019-19006. In 2022,
the threat actor shifted its focus to the Elastix system via CVE-2021-45461.
These incidents begin with the exploitation of a FreePBX vulnerability,
followed by the deployment of a PHP web shell in the target environments. We
assess that this campaign represents recent attack activity and behavior
patterns associated with INJ3CTOR3.

‼️AISLE Goes 12-for-12 on OpenSSL Vulnerability Detection

CVEs Published: January 27th, 2026

High and Moderate Severity Flaws:

▪️CVE-2025-15467: Stack Buffer Overflow in CMS AuthEnvelopedData Parsing (High): A vulnerability with the potential to enable remote code execution under specific conditions

▪️CVE-2025-11187: PBMAC1 Parameter Validation in PKCS#12 (Moderate): Missing validation that could trigger a stack-based buffer overflow

Low Severity Flaws:

▪️CVE-2025-15468: Crash in QUIC protocol cipher handling
▪️CVE-2025-15469: Silent truncation bug affecting post-quantum signature algorithms (ML-DSA)
▪️CVE-2025-66199: Memory exhaustion via TLS 1.3 certificate compression
▪️CVE-2025-68160: Memory corruption in line-buffering (affects code back to OpenSSL 1.0.2)
▪️CVE-2025-69418: Encryption flaw in OCB mode on hardware-accelerated paths
▪️CVE-2025-69419: Memory corruption in PKCS#12 character encoding
▪️CVE-2025-69420: Crash in TimeStamp Response verification
▪️CVE-2025-69421: Crash in PKCS#12 decryption
▪️CVE-2026-22795: Crash in PKCS#12 parsing
▪️CVE-2026-22796: Crash in PKCS#7 signature verification (affects code back to OpenSSL 1.0.2)

"When parsing CMS AuthEnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is copied into a fixed-size stack buffer without verifying that its length fits the destination. An attacker can supply a crafted CMS message with an oversized IV, causing a stack-based out-of-bounds write before any authentication or tag verification occurs.

Applications and services that parse untrusted CMS or PKCS#7 content using AEAD ciphers (e.g., S/MIME AuthEnvelopedData with AES-GCM) are vulnerable. Because the overflow occurs prior to authentication, no valid key material is required to trigger it. While exploitability to remote code execution depends on platform and toolchain mitigations, the stack-based write primitive represents a severe risk."

Writeup: https://aisle.com/blog/aisle-discovered-12-out-of-12-openssl-vulnerabilities

🟠 CVE-2025-69420 - High (7.5)

Issue summary: A type confusion vulnerability exists in the TimeStamp Response
verification code where an ASN1_TYPE union member is accessed without first
validating the type, causing an invalid or NULL pointer dereference when
processing a malfor...

🔗 https://www.thehackerwire.com/vulnerability/CVE-2025-69420/

#CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

‼️AISLE Goes 12-for-12 on OpenSSL Vulnerability Detection

CVEs Published: January 27th, 2026

High and Moderate Severity Flaws:

▪️CVE-2025-15467: Stack Buffer Overflow in CMS AuthEnvelopedData Parsing (High): A vulnerability with the potential to enable remote code execution under specific conditions

▪️CVE-2025-11187: PBMAC1 Parameter Validation in PKCS#12 (Moderate): Missing validation that could trigger a stack-based buffer overflow

Low Severity Flaws:

▪️CVE-2025-15468: Crash in QUIC protocol cipher handling
▪️CVE-2025-15469: Silent truncation bug affecting post-quantum signature algorithms (ML-DSA)
▪️CVE-2025-66199: Memory exhaustion via TLS 1.3 certificate compression
▪️CVE-2025-68160: Memory corruption in line-buffering (affects code back to OpenSSL 1.0.2)
▪️CVE-2025-69418: Encryption flaw in OCB mode on hardware-accelerated paths
▪️CVE-2025-69419: Memory corruption in PKCS#12 character encoding
▪️CVE-2025-69420: Crash in TimeStamp Response verification
▪️CVE-2025-69421: Crash in PKCS#12 decryption
▪️CVE-2026-22795: Crash in PKCS#12 parsing
▪️CVE-2026-22796: Crash in PKCS#7 signature verification (affects code back to OpenSSL 1.0.2)

"When parsing CMS AuthEnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is copied into a fixed-size stack buffer without verifying that its length fits the destination. An attacker can supply a crafted CMS message with an oversized IV, causing a stack-based out-of-bounds write before any authentication or tag verification occurs.

Applications and services that parse untrusted CMS or PKCS#7 content using AEAD ciphers (e.g., S/MIME AuthEnvelopedData with AES-GCM) are vulnerable. Because the overflow occurs prior to authentication, no valid key material is required to trigger it. While exploitability to remote code execution depends on platform and toolchain mitigations, the stack-based write primitive represents a severe risk."

Writeup: https://aisle.com/blog/aisle-discovered-12-out-of-12-openssl-vulnerabilities

❗️CVE-2025-52691: SmarterMail Authentication Bypass and RCE PoC

https://darkwebinformer.com/cve-2025-52691-smartermail-authentication-bypass-and-rce-poc/