CVE-2025-59375
Published: September 15, 2025Last modified: September 25, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | expat | Fixed (2.7.2-r0) |
| 25 LTS | expat | Fixed (2.7.2-r0) | |
| Stream | expat | Fixed (2.7.2-r0) | |
| Hardened Containers | 23 LTS | expat | Fixed (2.7.2-r0) |
| Stream | expat | Fixed (2.7.2-r0) |
References
- http://www.openwall.com/lists/oss-security/2025/09/16/2
- https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74
- https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes
- https://github.com/libexpat/libexpat/issues/1018
- https://github.com/libexpat/libexpat/pull/1034
- https://issues.oss-fuzz.com/issues/439133977