Protection Mechanism Failure

Overview Affected versions of this package are vulnerable to Protection Mechanism Failure in the ClientHandshake function, which handles ClientHello messages, and in particular the serverHello.random field. An attacker can downgrade the TLS connection from TLS 1.3 by removing the SupportedVersion...

GO-2025-3638 ServerHellos are accepted without checking TLS 1.3 downgrade canaries in github.com/refraction-networking/utls

Before version 1.7.0, utls did not implement the TLS 1.3 downgrade protection mechanism specified in RFC 8446 Section 4.1.3 when using a utls ClientHello spec. This allowed an active network adversary to downgrade TLS 1.3 connections initiated by a utls client to a lower TLS version e.g., TLS 1.2...

GHSA-PMC3-P9HX-JQ96 uTLS ServerHellos are accepted without checking TLS 1.3 downgrade canaries

Description Before version 1.7.0, utls did not implement the TLS 1.3 downgrade protection mechanism specified in RFC 8446 Section 4.1.3 when using a utls ClientHello spec. This allowed an active network adversary to downgrade TLS 1.3 connections initiated by a utls client to a lower TLS version...

uTLS ServerHellos are accepted without checking TLS 1.3 downgrade canaries

Description Before version 1.7.0, utls did not implement the TLS 1.3 downgrade protection mechanism specified in RFC 8446 Section 4.1.3 when using a utls ClientHello spec. This allowed an active network adversary to downgrade TLS 1.3 connections initiated by a utls client to a lower TLS version...

PT-2025-54829

Name of the Vulnerable Software and Affected Versions utls versions prior to 1.7.0 Description The utls software did not implement the TLS 1.3 downgrade protection mechanism as specified in RFC 8446 Section 4.1.3 when a utls ClientHello specification was used. This allowed a network attacker to...

CVE-2025-29989

Dell Client Platform BIOS contains a Security Version Number Mutable to Older Versions vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to BIOS upgrade denial...

CVE-2025-29989

Dell Client Platform BIOS contains a Security Version Number Mutable to Older Versions vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to BIOS upgrade denial...

CVE-2025-29989

Dell Client Platform BIOS contains a Security Version Number Mutable to Older Versions vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to BIOS upgrade denial...

SSH Prefix Truncation Vulnerability (Terrapin attack) on Citrix Applayering

SSH Prefix Truncation Vulnerability Terrapin attack on Citrix App Layering . Note: The Terrapin attack can reduce the security of SSH by using a downgrade attack via man-in-the-middle interception. The attack works by prefix truncation; the injection and deletion of messages during feature...

CVE-2025-24239

A downgrade issue was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.4. An app may be able to access protected user data...

Incorrect Privilege Assignment

Overview Affected versions of this package are vulnerable to Incorrect Privilege Assignment that allows a Restricted Administrator user to change the password of an Administrator account and escalate privileges by taking over the Administrator account. Workaround This vulnerability can be avoided...

CVE-2025-24239

A downgrade issue was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.4. An app may be able to access protected user data...

CVE-2025-24239

A downgrade issue was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.4. An app may be able to access protected user data...

CVE-2025-24239

A downgrade issue was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.4. An app may be able to access protected user data...

PT-2025-13921 · Apple · Apple Macos

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 15.4 Description: A downgrade issue was addressed with additional code-signing restrictions. This issue allows an app to potentially access protected user data. Recommendations: For versions prior to 15.4, update to...

Apple macOS 安全漏洞

Apple macOS is a suite of specialized operating systems from the U.S. company Apple Apple developed specifically for Mac computers. A security vulnerability exists in Apple macOS Sequoia, which stems from a downgrade issue that could result in access to protected user data...

CVE-2025-2242

An improper access control vulnerability in GitLab CE/EE affecting all versions from 17.4 prior to 17.8.6, 17.9 prior to 17.9.3, and 17.10 prior to 17.10.1 allows a user who was an instance admin before but has since been downgraded to a regular user to continue to maintain elevated privileges to...

CVE-2024-8773

SIMPLE.ERP client is vulnerable to MS SQL protocol downgrade request from a server side, what could lead to an unencrypted communication vulnerable to data interception and modification. This issue affect SIMPLE.ERP from 6.20 to 6.30. Only the 6.30 version received a patch [email protected], which make ...

CVE-2024-8773

SIMPLE.ERP client is vulnerable to MS SQL protocol downgrade request from a server side, what could lead to an unencrypted communication vulnerable to data interception and modification. This issue affect SIMPLE.ERP from 6.20 to 6.30. Only the 6.30 version received a patch [email protected], which make ...

CVE-2024-8773 Protocol Downgrade in SIMPLE.ERP

SIMPLE.ERP client is vulnerable to MS SQL protocol downgrade request from a server side, what could lead to an unencrypted communication vulnerable to data interception and modification. This issue affect SIMPLE.ERP from 6.20 to 6.30. Only the 6.30 version received a patch [email protected], which make ...