Buffer overflow in Mediatek En7528
CVE-2021-31578
In Boa, there is a possible escalation of privilege due to a stack buffer overflow. This could lead to remote escalation of privilege from a proximal attacker with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: A20210008; Issue ID: OSBNB00123241.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Mediatek En7528
- Mediatek En7528 Firmware
- Mediatek En7580
- Mediatek En7580 Firmware
- Mediatek, Inc. En7528, En7580 — versions Linux SDK versions less than TLM7.3.275.0-64
Weakness classification (CWE)
Public proof-of-concept exploits
References
- corp.mediatek.com/product-security-acknowledgements (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-31578?
- CVE-2021-31578 is a critical-severity vulnerability in Mediatek En7528, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-02-06.
- How severe is CVE-2021-31578?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-31578 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.