CVE Explorer
CVE-2026-28529
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","packageURL":"pkg:github/cryptodev-linux/cryptodev-linux","product":"cryptodev-linux","repo":"https://github.com/cryptodev-linux/cryptodev-linux","vendor":"cryptodev-linux","versions":[{"lessThanOrEqual":"1.14","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f3a715a4810a1a84acba455bd7df75588c9fcbc495ec5d7e272b8e33be0e5852 · sha256:ce91baeefbb630af… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.5,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIG…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f3a715a4810a1a84acba455bd7df75588c9fcbc495ec5d7e272b8e33be0e5852 · sha256:ce91baeefbb630af… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-416","description":"Use After Free (CWE-416)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f3a715a4810a1a84acba455bd7df75588c9fcbc495ec5d7e272b8e33be0e5852 · sha256:ce91baeefbb630af… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"tags":["exploit"],"url":"https://gist.github.com/n4sm/0fd2479e0c23e0fa2f192cd8fda45750"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f3a715a4810a1a84acba455bd7df75588c9fcbc495ec5d7e272b8e33be0e5852 · sha256:ce91baeefbb630af… · /containers/cna/references/1
{"tags":["issue-tracking"],"url":"https://github.com/cryptodev-linux/cryptodev-linux/pull/104"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f3a715a4810a1a84acba455bd7df75588c9fcbc495ec5d7e272b8e33be0e5852 · sha256:ce91baeefbb630af… · /containers/cna/references/2
{"tags":["technical-description","exploit"],"url":"https://nasm.re/posts/cryptodev-linux-vuln/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f3a715a4810a1a84acba455bd7df75588c9fcbc495ec5d7e272b8e33be0e5852 · sha256:ce91baeefbb630af… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/cryptodev-linux-get-userbuf-use-after-free-lpe"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f3a715a4810a1a84acba455bd7df75588c9fcbc495ec5d7e272b8e33be0e5852 · sha256:ce91baeefbb630af… · /containers/cna/references/3
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.