by Kastro
Paper/Archive/CVE-2026-55366

CVE-2026-55366

Google Android — In IP Multimedia Subsystem, there is a possible authentication bypass due to a logic error in the code.

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
37
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 39.9.399 × 208.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

In IP Multimedia Subsystem, there is a possible authentication bypass due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected

ProductAffectedFixed inSource
AndroidAndroid kernel–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refsource.android.com/docs/security/bulletin/pixel/2026/2026-09-01