High7.8Red Hat & Ubuntu Linux
local privilege escalation via forged cifs.spnego key description in cifs.upcall
CVE-2026-12505 Published Jun 16, 2026
CVE-2026-12505
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
local privilege escalation via forged cifs.spnego key description in cifs.upcall. Red Hat rates this important (CVSS 7.8). Weakness: CWE-250. Affected package(s): cifs-utils. Resolved in Red Hat advisory RHSA-2026:32990 — update the affected packages (`sudo dnf update`).
Affected versions
- cifs-utils-0:7.6-1.el10_2
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Fixed versions
- RHSA-2026:32990
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:32990 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
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