CVEvulnerability
CVE-2026-28529
8.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-25
- Last modified
- 2026-08-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.5 HIGH — CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
cryptodev-linux version 1.14 and prior contain a page reference handling flaw in the get_userbuf function of the /dev/crypto device driver that allows local users to trigger use-after-free conditions. Attackers with access to the /dev/crypto interface can repeatedly decrement reference counts of controlled pages to achieve local privilege escalation.
Affected configurations
• cryptodev-linux cryptodev-linux (<= 1.14)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://gist.github.com/n4sm/0fd2479e0c23e0fa2f192cd8fda45750 Exploit
- https://github.com/cryptodev-linux/cryptodev-linux/pull/104 Patch, Third Party Advisory
- https://nasm.re/posts/cryptodev-linux-vuln/ Third Party Advisory
- https://www.vulncheck.com/advisories/cryptodev-linux-get-userbuf-use-after-free-lpe Third Party Advisory