CVE-2025-59375: CWE-770 Allocation of Resources Without Limits or Throttling in libexpat project libexpat
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
AI Analysis
Technical Summary
CVE-2025-59375 is a resource allocation vulnerability (CWE-770) in the libexpat XML parsing library prior to version 2.7.2. Attackers can exploit this flaw by submitting a small XML document that triggers excessive dynamic memory allocation, potentially causing denial of service due to resource exhaustion. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity. A temporary fix is available, but no permanent official patch is confirmed yet.
Potential Impact
Successful exploitation results in denial of service through excessive memory consumption, impacting availability of applications using vulnerable versions of libexpat. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
A temporary fix is available and should be applied to mitigate the vulnerability. Users should monitor the libexpat project for an official permanent fix and update to version 2.7.2 or later once released. No additional vendor advisory details are provided, so patch status beyond the temporary fix is not confirmed.
CVE-2025-59375: CWE-770 Allocation of Resources Without Limits or Throttling in libexpat project libexpat
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 v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-59375 is a resource allocation vulnerability (CWE-770) in the libexpat XML parsing library prior to version 2.7.2. Attackers can exploit this flaw by submitting a small XML document that triggers excessive dynamic memory allocation, potentially causing denial of service due to resource exhaustion. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity. A temporary fix is available, but no permanent official patch is confirmed yet.
Potential Impact
Successful exploitation results in denial of service through excessive memory consumption, impacting availability of applications using vulnerable versions of libexpat. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
A temporary fix is available and should be applied to mitigate the vulnerability. Users should monitor the libexpat project for an official permanent fix and update to version 2.7.2 or later once released. No additional vendor advisory details are provided, so patch status beyond the temporary fix is not confirmed.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- mitre
- Date Reserved
- 2025-09-15T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- temporary-fix
Threat ID: 68c781b639776bc2a148c65c
Added to database: 09/15/2025, 03:02:14 UTC
Last enriched: 07/15/2026, 11:18:53 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 292
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