Dashboard / CVE-2026-28529

CVE-2026-28529

HIGH
MEDIUM Priority: 0.02 BB Relevance: 42/100
Published: 2026-03-25 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
AT: None
VC: High
VI: High
VA: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
cryptodev-linux cryptodev-linux 0

References & Advisories (4)

https://nasm.re/posts/cryptodev-linux-vuln/
technical-description exploit

Bug Bounty Relevance

42 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

8.5 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.18%
Raw Score 0.001810
Percentile 7.8%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00181
2026-11-12
0.00181
2026-11-10
0.00178
2026-11-09
0.00178
2026-11-08
0.00178

Intelligence Sources

mitre ref →

External Links