CVE-2026-49921
CVSS v3
9.8
CRITICAL
EPSS Score
0.4 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In multiple locations, there is a possible memory safety issue due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
Technical details
- Published
- 2026-09-08
- Last Modified
- 2026-09-08
Frequently asked questions
What is CVE-2026-49921?
In multiple locations, there is a possible memory safety issue due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
Is CVE-2026-49921 actively exploited?
Active exploitation of CVE-2026-49921 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-2026-49921?
CVE-2026-49921 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2026-49921 affecting your environment?
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