CVE-2025-20647: mediatek nr12a NULL Pointer Dereference
Vulnerability summary
CVE-2025-20647 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in mediatek nr12a. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 28.8% of scored vulnerabilities.
Timeline
- 03-03-2025PublishedVulnerability first disclosed.
- 17-02-2026Last modifiedVulnerability information updated.
Description
In Modem, there is a possible system crash due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00791311 / MOLY01067019; Issue ID: MSV-2721.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.36%
Chance of exploitation in the next 30 days
Percentile
29%
Versus all other CVEs
30-day change
0.00 pp
From 0.36% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
1 vendor · 4 products
References
1 links- corp.mediatek.com/product-security-bulletin/March-2025Vendor Advisory