CVE-2026-55331
CVSS v3
8.8
HIGH
EPSS Score
0.4 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In IP Multimedia Subsystem, there is a possible out-of-bounds write due to an incorrect bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
Technical details
- Published
- 2026-09-15
- Last Modified
- 2026-09-16
Frequently asked questions
What is CVE-2026-55331?
In IP Multimedia Subsystem, there is a possible out-of-bounds write due to an incorrect bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
Is CVE-2026-55331 actively exploited?
Active exploitation of CVE-2026-55331 has not been confirmed. Its EPSS score was 0.4% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-55331?
CVE-2026-55331 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2026-55331 affecting your environment?
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