CVE-2025-13013 | Mitigation bypass in the DOM: Core & HTML component

Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.

Published: 2025-11-11 Last update: 2026-04-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-13013 is rated Low Risk (30.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2025-13013

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 2026-04-21 0.04% 0.05% +0.01%
2 2026-04-09 0.07% 0.04% -0.03%
3 2025-11-20 — 0.07% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-13013

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N 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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-13013

OS Trackers for CVE-2025-13013

vendor priority summary link
alpine — CVE-2025-13013: 3 source package rows (firefox, firefox-esr, thunderbird); 416 state rows across 3 repos (3.22-community, 3.23-community, edge-community); fixed 0, open 416. https://security.alpinelinux.org/vuln/CVE-2025-13013
debian not yet assigned CVE-2025-13013 not yet assigned priority: Debian including 3 source packages (firefox, firefox-esr, thunderbird), 11 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 11. https://security-tracker.debian.org/tracker/CVE-2025-13013
redhat medium — https://access.redhat.com/security/cve/CVE-2025-13013
suse high CVE-2025-13013 severity important: SUSE including 59 source package names (2.2.0-4.10:libsystemd0-254.23-slfo.1.1_1.1, 2.2.0-4.10:libudev1-254.23-slfo.1.1_1.1, …), 322 product×package rows across 84 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (84 product lines)): Fixed 318, First Fixed 4. https://www.suse.com/security/cve/CVE-2025-13013/
ubuntu medium CVE-2025-13013 medium priority: Ubuntu including 9 source packages (firefox, mozjs102, …), 49 status rows across 7 suites (bionic, focal, jammy, noble, plucky, questing, upstream): DNE 22, needs-triage 10, ignored 9, not-affected 7, released 1. https://ubuntu.com/security/CVE-2025-13013

Affected software / configurations for CVE-2025-13013

Vendor Product Version Raw CPE
mozilla firefox < 115.30.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
mozilla firefox < 145.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
mozilla firefox >= 140.0, < 140.5.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*

References for CVE-2025-13013

cvelogic Threat Intelligence