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Vulnerability · Published Mar 29, 2026 · Assigned by VulDB

CVE-2026-5037mxml mxmlIndexNew mxml-index.c index_sort stack-based overflow

Low 3.3

In plain English

A low-severity stack buffer overflow in mxml. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.1%top 97.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability was determined in mxml up to 4.0.4. This issue affects the function index_sort of the file mxml-index.c of the component mxmlIndexNew. Executing a manipulation of the argument tempr can lead to stack-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 6e27354466092a1ac65601e01ce6708710bb9fa5. A patch should be applied to remediate this issue.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12mxml3.3.1-1+deb13u1~deb12u1DEBIAN-CVE-2026-5037
Debian:13mxml3.3.1-1+deb13u1DEBIAN-CVE-2026-5037
Debian:14mxml4.0.4-4DEBIAN-CVE-2026-5037
Ubuntu:22.04:LTSmxmlno fix listedUBUNTU-CVE-2026-5037
Ubuntu:24.04:LTSmxmlno fix listedUBUNTU-CVE-2026-5037
Ubuntu:25.10mxmlno fix listedUBUNTU-CVE-2026-5037
Ubuntu:26.04:LTSmxmlno fix listedUBUNTU-CVE-2026-5037
Ubuntu:26.10mxmlno fix listedUBUNTU-CVE-2026-5037

Affected products (as reported)

VendorProductVersions
n/a mxml 4.0.04.0.14.0.24.0.34.0.4

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

References