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.
Published: 2025-09-15
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4510-1 firefox-esr security update
Debian DLA Debian DLA DLA-4511-1 thunderbird security update
Debian DSA Debian DSA DSA-6178-1 firefox-esr security update
Debian DSA Debian DSA DSA-6179-1 thunderbird security update
EUVD EUVD EUVD-2025-29148 libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
History

Tue, 12 May 2026 13:30:00 +0000


Fri, 01 May 2026 15:30:00 +0000

Type Values Removed Values Added
References

Tue, 04 Nov 2025 22:30:00 +0000

Type Values Removed Values Added
References

Fri, 17 Oct 2025 19:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*

Wed, 17 Sep 2025 13:30:00 +0000

Type Values Removed Values Added
References

Mon, 15 Sep 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 15 Sep 2025 12:15:00 +0000

Type Values Removed Values Added
Title expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing
References
Metrics threat_severity

None

threat_severity

Important


Mon, 15 Sep 2025 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Libexpat Project
Libexpat Project libexpat
Vendors & Products Libexpat Project
Libexpat Project libexpat

Mon, 15 Sep 2025 03:00:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:T/RC:C'}


Subscriptions

Libexpat Project Libexpat
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-12T12:08:30.282Z

Reserved: 2025-09-15T00:00:00.000Z

Link: CVE-2025-59375

cve-icon Vulnrichment

Updated: 2026-05-01T14:25:12.055Z

cve-icon NVD

Status : Modified

Published: 2025-09-15T03:15:40.920

Modified: 2026-05-12T13:17:22.640

Link: CVE-2025-59375

cve-icon Redhat

Severity : Important

Publid Date: 2025-09-15T00:00:00Z

Links: CVE-2025-59375 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-09-15T10:43:20Z

Weaknesses