What is CVE-2026-55277?

CVE-2026-55277 is a high-severity vulnerability in Google Android, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.0/10. Published 2026-09-08.

How severe is CVE-2026-55277?

High severity. CVSS v3 base score is 8.0 out of 10.

Buffer overflow in Google Android

CVE-2026-55277

In checkUiccListenConfigNeeded of RoutingManager.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 16-qpr2, 17

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

security@android.com

Frequently asked questions

What is CVE-2026-55277?: CVE-2026-55277 is a high-severity vulnerability in Google Android, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.0/10. Published 2026-09-08.
How severe is CVE-2026-55277?: High severity. CVSS v3 base score is 8.0 out of 10.