Vulnerability Description
NetBSD prior to commit ec8451e contains a race condition vulnerability in cryptodev_op() within the opencrypto subsystem that allows local attackers to trigger a double-free condition by concurrently issuing CIOCCRYPT operations on the same session identifier on SMP systems. Attackers can exploit mutable per-operation state embedded in the csession struct to corrupt kernel heap memory.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/NetBSD/src/commit/ec8451efc1565516aba9e7047e1a1a1ce7953a2f
- https://nasm.re/posts/uaf_netbsd_crypto/
- https://www.vulncheck.com/advisories/netbsd-cryptodev-race-condition-double-free
FAQ
What is CVE-2026-32848?
CVE-2026-32848 is a vulnerability with a CVSS score of 4.7 (MEDIUM). NetBSD prior to commit ec8451e contains a race condition vulnerability in cryptodev_op() within the opencrypto subsystem that allows local attackers to trigger a double-free condition by concurrently ...
How severe is CVE-2026-32848?
CVE-2026-32848 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32848?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.