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Vulnerability · Published Feb 18, 2026 · Assigned by VulDB

CVE-2026-2653admesh normals.c stl_check_normal_vector heap-based overflow

Medium 5.3

In plain English

A medium-severity heap buffer overflow in admesh. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 80.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A security flaw has been discovered in admesh up to 0.98.5. This issue affects the function stl_check_normal_vector of the file src/normals.c. Performing a manipulation results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. It looks like this product is not really maintained anymore.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12admeshno fix listedDEBIAN-CVE-2026-2653
Debian:13admeshno fix listedDEBIAN-CVE-2026-2653
Debian:14admeshno fix listedDEBIAN-CVE-2026-2653
PyPIadmesh0.98.6PYSEC-2026-5
Ubuntu:22.04:LTSadmeshno fix listedUBUNTU-CVE-2026-2653
Ubuntu:24.04:LTSadmeshno fix listedUBUNTU-CVE-2026-2653
Ubuntu:25.10admeshno fix listedUBUNTU-CVE-2026-2653
Ubuntu:26.04:LTSadmeshno fix listedUBUNTU-CVE-2026-2653
Ubuntu:26.10admeshno fix listedUBUNTU-CVE-2026-2653

Affected products (as reported)

VendorProductVersions
n/a admesh 0.98.00.98.10.98.20.98.30.98.40.98.5

Weakness: CWE-122, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C

References