CVE search · CVE-2026-27171
CVE-2026-27171
medium 5.5
zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- cve@mitre.org
- Weakness
- CWE-1284
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | low 2.9 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
cve@mitre.orgSecondary |
| CVSS 3.1 | medium 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
nvd@nist.govPrimary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- zlib · zlib
References
- https://7asecurity.com/blog/2026/02/zlib-7asecurity-audit/Product
- https://7asecurity.com/reports/pentest-report-zlib-RC1.1.pdfTechnical Description
- https://github.com/madler/zlib/issues/904ExploitIssue Tracking
- https://github.com/madler/zlib/releases/tag/v1.3.2Release Notes
- https://ostif.org/zlib-audit-complete/Product
- https://7asecurity.com/reports/pentest-report-zlib-RC1.1.pdfTechnical Description