2.5

CVE-2025-66861: gnu binutils Uncontrolled Resource Consumption

CVSS: 2.5v3.1LowAnalyzed
AliasesUBUNTU-CVE-2025-66861DEBIAN-CVE-2025-66861
Published 29-12-2025Last modified 31-12-2025
Open JSON

Vulnerability summary

CVE-2025-66861 is a low (CVSS 2.5) Uncontrolled Resource Consumption vulnerability in gnu binutils. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
2.5/10
010
Low · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2026:7098

Timeline

  1. 29-12-2025
    PublishedVulnerability first disclosed.
  2. 31-12-2025
    Last modifiedVulnerability information updated.

Description

An issue was discovered in function d_unqualified_name in file cp-demangle.c in BinUtils 2.26 allowing attackers to cause a denial of service via crafted PE file.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

0.00 pp

From 0.14% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Crgf Vul

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • binutilsAll versions (No fix recorded)
Gnu1 product
Ubuntu1 product
  • binutilsAll versions (No fix recorded)

3 vendors · 3 products

References

4 links