HIGHVulnerability
CVE-2026-79591
A heap-buffer-overflow and use-after-free vulnerability exists in the xls_getCSS() function of libxls 1.6.3 due to insufficient validation of a file-controlled font index.
Properties
- severity
- HIGH
- score
- 7.8
- cve_id
- CVE-2026-79591
- signal_observed_at
- 2026-09-18T13:45:43+00:00
- vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- published_at
- 2026-09-10T21:17:46.933
- last_modified
- 2026-09-15T15:17:22.207
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Heap-based Buffer Overflow
DESCRIBED_BY (1)
→[Source]NVD
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