CVE-2026-21733
Medium
Elevated severity or exploit probability.
CVSS base
7.3
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
EPSS — probability of exploitation (30 days)
0.1%
0.9th percentile
CISA KEV
Not listed
Weakness / dates
CWE-20
Published 2026-04-17 · modified 2026-08-12
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | L | Low |
Timeline
- 2026-04-17 — Published (NVD)
- 2026-08-12 — Last modified (NVD)
Description
Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory and files. This is caused by improper handling of GPU memory reservation protections.