OpenBSD 8.0 adds firewall hardening and vulnerability fixes
Errata also cover a remotely triggerable IPsec AES-GMAC kernel heap overflow on specific hardware; AES-GCM is unaffected.
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CVE-2026-76957
- CVSS 3.1
- 7.8 high
- EPSS
- <1%p1
- Published
- ·
- Modified
Description · NVD
libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412.
- Vendors
- libexpat project
- Products
- libexpat
- Weakness
- CWE-416
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H