What is CVE-2025-1414?

CVE-2025-1414 is a medium-severity vulnerability in Mozilla Firefox, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2025-02-18.

How severe is CVE-2025-1414?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Mozilla Firefox

CVE-2025-1414

Memory safety bugs present in Firefox 135. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 135.0.1.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (36.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Mozilla Firefox — versions 135.0.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security@mozilla.org (Permissions Required, Issue Tracking)
security@mozilla.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-1414?: CVE-2025-1414 is a medium-severity vulnerability in Mozilla Firefox, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2025-02-18.
How severe is CVE-2025-1414?: Medium severity. CVSS v3 base score is 6.5 out of 10.