7.5

CVE-2025-59375: libexpat_project libexpat

Modified
AliasesALPINE-CVE-2025-59375SUSE-SU-2025:03508-1SUSE-SU-2025:03536-1
Published 15-09-2025Last modified 15-10-2026

Vulnerability summary

CVE-2025-59375 is a high (CVSS 7.5) vulnerability in libexpat_project libexpat. EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 72.1% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.38%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2github, reference

Advisory lineage

Upstream 0 · Downstream 35 · Related 15
DLA-4510-1DLA-4511-1DSA-6178-1DSA-6179-1MGASA-2025-0240MGASA-2026-0080

Timeline

  1. 15-09-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

CVSS metrics

8 scores · 8 sources · 1 version

EPSS trend

Probability

1.38%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

Increase +0.06 pp

From 1.31% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • githubUnverified

    Libexpat

    Maturity: poc

  • referenceUnverified

    Exploit Reference (issues.oss-fuzz.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse28 products
  • expat&distro=SUSE Enterprise Storage 7.1< 2.7.1-150000.3.39.1
  • expat&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS< 2.7.1-150000.3.39.1
  • expat&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 2.7.1-150400.3.31.1
  • expat&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 2.7.1-150400.3.31.1
  • expat&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 2.7.1-150400.3.31.1
Ubuntu16 products
  • ayttmAll versions (No fix recorded)
  • cableswigAll versions (No fix recorded)
  • cadaverAll versions (No fix recorded)
  • coin3All versions (No fix recorded)
  • expatAll versions (No fix recorded) | < 2.6.1-2ubuntu0.5 | < 2.7.1-2ubuntu0.2
Redhat15 products
  • expat< 0:2.7.1-1.el10_0.3 | < 0:2.5.0-5.el9_6.1 | < 0:2.5.0-5.el9_7.1 | < 0:2.7.1-1.el10_1.3 | < 0:2.7.5-1.hum1
  • expat-debuginfo< 0:2.7.1-1.el10_0.3 | < 0:2.5.0-5.el9_6.1 | < 0:2.5.0-5.el9_7.1 | < 0:2.7.1-1.el10_1.3
  • expat-debugsource< 0:2.7.1-1.el10_0.3 | < 0:2.5.0-5.el9_6.1 | < 0:2.5.0-5.el9_7.1 | < 0:2.7.1-1.el10_1.3
  • expat-devel< 0:2.7.1-1.el10_0.3 | < 0:2.5.0-5.el9_6.1 | < 0:2.5.0-5.el9_7.1 | < 0:2.7.1-1.el10_1.3 | < 0:2.7.5-1.hum1
  • expat-static< 0:2.7.5-1.hum1
Debian3 products
  • expat< 2.5.0-1+deb12u4 | < 2.5.0-1+deb12u5 | < 2.8.2-1~deb13u1 | < 2.7.2-1
  • firefox-esr< 140.9.0esr-1~deb12u1 | < 140.9.0esr-1~deb13u1 | < 140.9.0esr-1
  • thunderbird< 1:140.9.0esr-1~deb12u1 | < 1:140.9.0esr-1~deb13u1 | < 1:140.9.0esr-1
Opensuse3 products
  • expat&distro=openSUSE Leap 15.6< 2.7.1-150400.3.31.1
  • expat&distro=openSUSE Leap 16.0< 2.7.1-160000.3.1
  • expat&distro=openSUSE Tumbleweed< 2.7.2-1.1
Alpine1 product
  • expat< 2.7.2-r0
Chainguard1 product
  • expat< 2.7.2-r0
Libexpat_project1 product
Wolfi1 product
  • expat< 2.7.2-r0

9 vendors · 69 products

References

47 links
Show all 47 references