CVE-2025-8291
Description
The zipfile module would not check the validity of the ZIP64 End ofCentral Directory (EOCD) Locator record offset value would not be used tolocate the ZIP64 EOCD record, instead the ZIP64 EOCD record would beassumed to be the previous record in the ZIP archive. This could be abusedto create ZIP archives that are handled differently by the zipfile modulecompared to other ZIP implementations.Remediation maintains this behavior, but checks that the offset specifiedin the ZIP64 EOCD Locator record matches the expected value.
Risk Information
Base Score
4.3
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS Score
Exploitation Probability
0.114
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerabilities CVE-2025-8291 are affected in Python 3.10.18 | Windows |
| Vulnerabilities CVE-2025-8291 are affected in Python 3.11.13 | Windows |
| Vulnerabilities CVE-2025-8291 are affected in Python 3.12.11 | Windows |
| Vulnerabilities CVE-2025-12781,CVE-2025-13837,CVE-2025-8291 are affected in Python 3.13.9 | Windows |
| Vulnerabilities CVE-2025-13836,CVE-2025-8291 are affected in Python 3.14.0 | Windows |
| Vulnerabilities CVE-2025-8291 are affected in Python 3.9.23 | Windows |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234