4.8

CVE-2026-9501: gnu libredwg Reachable Assertion

CVSS: 4.8v4.0MediumDeferred
Published 25-05-2026Last modified 28-05-2026
Open JSON

Vulnerability summary

CVE-2026-9501 is a medium (CVSS 4.8) Reachable Assertion vulnerability in gnu libredwg. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.16%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:10879-1OPENSUSE-SU-2026:21346-1

Timeline

  1. 25-05-2026
    PublishedVulnerability first disclosed.
  2. 28-05-2026
    Last modifiedVulnerability information updated.

Description

A vulnerability was determined in GNU LibreDWG up to 0.14. The impacted element is the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. A patch should be applied to remediate this issue.

CVSS metrics

7 scores · 2 sources · 4 versions

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.02 pp

From 0.14% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Cve Repos

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Gnu1 product
  • libredwg0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 0.10 | 0.11 | 0.12 | 0.13 | 0.14

1 vendor · 1 product

References

7 links