What is CVE-2023-20691?

CVE-2023-20691 is a high-severity vulnerability in Google Android, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2023-07-04.

How severe is CVE-2023-20691?

High severity. CVSS v3 base score is 7.5 out of 10.

Integer overflow in Google Android

CVE-2023-20691

In wlan firmware, there is possible system crash due to an integer overflow. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07664731; Issue ID: ALPS07664731.

Vulnerability class: Integer Overflow

Published 2023-07-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (36.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

corp.mediatek.com/product-security-bulletin/July-2023 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-20691?: CVE-2023-20691 is a high-severity vulnerability in Google Android, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2023-07-04.
How severe is CVE-2023-20691?: High severity. CVSS v3 base score is 7.5 out of 10.