In AppendCommentLine of AnnotationProcessor.cpp, there is a possible supply chain risk due to improper input validation.

published 2026-09-08 2 mo ago modified 2026-09-25 45 d ago also EUVD-2026-74017

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits: 0; none known

In AppendCommentLine of AnnotationProcessor.cpp, there is a possible supply chain risk due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Patch / fix

links 1

source.android.com/docs/security/bulletin/2026/2026-09-01 advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 mo ago (2026-09-08)

Exploit prediction

0.10% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Google Android

Classification

Weakness

CWE-20 Improper Input Validation

References

source.android.com /docs/security/bulletin/2026/2026-09-01
vendor-advisory, patch

Sources

CVE List CVE-2026-55273
NVD CVE-2026-55273

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Summary