Buffer overflow in Mediatek Mt7603
CVE-2022-26442
In wifi driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: GN20220420051; Issue ID: GN20220420051.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (16.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Mediatek Mt7603
- Mediatek Mt7603 Firmware — versions 7.6.2.3
- Mediatek Mt7610
- Mediatek Mt7610 Firmware — versions 7.6.2.3
- Mediatek Mt7612
- Mediatek Mt7612 Firmware — versions 7.6.2.3
- Mediatek Mt7613
- Mediatek Mt7613 Firmware — versions 7.6.2.3
- Mediatek Mt7615
- Mediatek Mt7615 Firmware — versions 7.6.2.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- corp.mediatek.com/product-security-bulletin/August-2022 (Vendor Advisory)
Frequently asked questions
- What is CVE-2022-26442?
- CVE-2022-26442 is a medium-severity vulnerability in Mediatek Mt7603, classified under Out-of-bounds Write. CVSS score: 6.7/10. Published 2022-08-01.
- How severe is CVE-2022-26442?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2022-26442 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.