CVE-2025-20743 json
In clkdbg, there is a possible escalation of privilege due to use after free.
published 2025-11-04 12 mo ago modified 2026-11-03 5 d ago also EUVD-2025-37571
- cvss
- 4.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 0%
- public exploits
- 0
- none known
Summary
In clkdbg, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10136671; Issue ID: MSV-4651.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 12 mo ago
Exploit prediction
0.08% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 4.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
| CNA | 3.1 | 4.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
Affected products
- MediaTek, Inc. MT2718, MT6761, MT6765, MT6768, MT6781, MT6853, MT6877, MT6886, MT6893, MT6897, MT6899, MT6983, MT6989, MT6991, MT8113, MT8163, MT8168, MT8169, MT8183, MT8186, MT8188, MT8195, MT8196, MT8321, MT8365, MT8385, MT8390, MT8391, MT8512, MT8516, MT8519, MT8676, MT8678, MT8695, MT8696, MT8698, MT8755, MT8766, MT8768, MT8771, MT8775, MT8781, MT8786, MT8788E, MT8791T, MT8792, MT8793, MT8796, MT8797, MT8798, MT8873, MT8883, MT8893
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
corp.mediatek.com
/product-security-bulletin/November-2025
vendor-advisory
Sources
- CVE List CVE-2025-20743
- NVD CVE-2025-20743
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.