CVE-2026-28529cryptodev-linux <= 1.14 get_userbuf Use After Free LPE
Updated under an hour ago ()
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It affects cryptodev-linux and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 8.5 HIGH (v4.0, CNA)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
- Weakness (CWE)
- CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Analyzed
- Record last updated
- Jul 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cryptodev-linux cryptodev-linux cryptodev_linux:cryptodev_linux (from the name) | through 1.14 | CNA record |
cryptodev-linux cryptodev-linux cryptodev-linux:cryptodev-linux | through 1.14 | NVD |
References
- https://nasm.re/posts/cryptodev-linux-vuln/technical-description, exploit, third-party-advisory
- https://gist.github.com/n4sm/0fd2479e0c23e0fa2f192cd8fda45750exploit
- https://github.com/cryptodev-linux/cryptodev-linux/pull/104issue-tracking, patch, third-party-advisory
- https://www.vulncheck.com/advisories/cryptodev-linux-get-userbuf-use-after-free-lpethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.