Out-of-bounds read in admesh

published 2022-05-08 4 y ago modified 2026-06-17 4 mo ago also GHSA-5jrq-582v-9767 , PYSEC-2022-182 , EUVD-2022-0001

cvss: 8.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 64%
public exploits: 0; none known

ADMesh through 0.98.4 has a heap-based buffer over-read in stl_update_connects_remove_1 (called from stl_remove_degenerate) in connect.c in libadmesh.a.

Patch / fix

fixed in 1 distros 1 links 1

pypi admesh 0.98.5

admesh Debian 14, Debian 13, Debian 12 0.98.4-2

debian advisories DEBIAN-CVE-2018-25033

github.com/admesh/admesh/issues/28 advisory

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-25033 updated 2025-11-21

admesh: heap-buffer-overflow in stl_update_connects_remove_1() of src/connect.c

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/admesh/admesh/issues/28 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
NVD	2.0	5.8	AV:N/AC:M/Au:N/C:P/I:N/A:P
GitHub	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	admesh	<0.98.5	0.98.5

Classification

Weakness

CWE-125 Out-of-bounds Read

References

github.com /admesh/admesh/issues/28
web, exploit, issue-tracking, patch, third-party-advisory, report
lists.debian.org /debian-lts-announce/2022/05/msg00029.html
mailing-list, web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2018-25033
advisory
github.com /admesh/admesh
package
github.com /advisories/GHSA-5jrq-582v-9767
advisory
github.com /pypa/advisory-database/tree/main/vulns/admesh/PYSEC-2022-182.yaml
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary