CVE-2026-20515: mediatek, inc. mediatek chipset Use After Free
CVSS: 5.5v3.1MediumDeferred
Published 07-09-2026Last modified 07-09-2026
Vulnerability summary
CVE-2026-20515 is a medium (CVSS 5.5) Use After Free vulnerability in mediatek, inc. mediatek chipset. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.2% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.11%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 07-09-2026PublishedVulnerability first disclosed.
- 07-09-2026Last modifiedVulnerability information updated.
Description
In gpu, there is a possible system crash due to use after free. This could lead to local information disclosure with User execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11122991; Issue ID: MSV-8132.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 2 agree
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.11%
Chance of exploitation in the next 30 days
Percentile
1%
Versus all other CVEs
30-day change
0.00 pp
From 0.11% on 21-09-2026
21-09-202621-10-2026
EPSS score0.11%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mediatek, inc.1 product
- mediatek chipsetMT6991 | MT8799
1 vendor · 1 product