CVE-2025-1414 | Memory safety bugs fixed in Firefox 135.0.1

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.

Published: 2025-02-18 Last update: 2026-04-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-1414 is rated Moderate Risk (43.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.28%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-1414

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-29 0.46% 0.28% -0.18%
2 2025-12-15 0.36% 0.46% +0.10%
3 2025-11-21 — 0.36% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-1414

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 2.5 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-1414

OS Trackers for CVE-2025-1414

vendor priority summary link
alpine — CVE-2025-1414: 1 source package rows (firefox); 133 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 133. https://security.alpinelinux.org/vuln/CVE-2025-1414
debian not yet assigned CVE-2025-1414 not yet assigned priority: Debian including 1 source packages (firefox), 1 status rows across 1 suites (sid): resolved 1. https://security-tracker.debian.org/tracker/CVE-2025-1414
redhat high — https://access.redhat.com/security/cve/CVE-2025-1414
ubuntu medium CVE-2025-1414 medium priority: Ubuntu including 9 source packages (firefox, mozjs102, …), 65 status rows across 8 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream): DNE 34, ignored 10, needs-triage 10, not-affected 10, released 1. https://ubuntu.com/security/CVE-2025-1414

Affected software / configurations for CVE-2025-1414

Vendor Product Version Raw CPE
mozilla firefox < 135.0.1 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

References for CVE-2025-1414

cvelogic Threat Intelligence