CVE reports

The Common Vulnerabilities and Exposures (CVE) system is used to identify, define, and catalog publicly disclosed cybersecurity vulnerabilities. Canonical keeps track of all CVEs affecting Ubuntu, and releases a security notice when an issue is fixed. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section

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Recent CVEs

CVE-2025-12543

High priority
Needs evaluation

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests...

1 affected package

undertow

CVE-2025-68973

High priority
Fixed

In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)

2 affected packages

gnupg2, gnupg

CVE-2025-14847

High priority
Vulnerable

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0...

1 affected package

mongodb

CVE-2025-43529

High priority
Vulnerable

A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.2, Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, tvOS 26.2. Processing...

5 affected packages

webkitgtk, webkit2gtk, qtwebkit-source, qtwebkit-opensource-src, wpewebkit

CVE-2025-67896

High priority
Not affected

Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.

1 affected package

exim4

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