CVE-2024-29944

An attacker was able to inject an event handler into a privileged object that would allow arbitrary JavaScript execution in the parent process. Note: This vulnerability affects Desktop Firefox only, it does not affect mobile versions of Firefox. This vulnerability affects Firefox < 124.0.1 and Firefox ESR < 115.9.1.

Published: 2024-03-22 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-29944 is rated High Risk (68.6/100): CVSS High severity, with high exploitation likelihood (EPSS 4.70%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.29% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize 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-2024-29944

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 2026-06-15 1.41% 4.70% +3.29%
2 2026-03-16 1.16% 1.41% +0.25%
3 2026-03-04 — 1.16% —

Full EPSS history (34 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-29944

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.4 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.5 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-29944

OS Trackers for CVE-2024-29944

vendor priority summary link
alpine — CVE-2024-29944: 4 source package rows (firefox, firefox-esr, mozjs, mozjs115); 107 state rows across 5 repos (3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 33, open 74. https://security.alpinelinux.org/vuln/CVE-2024-29944
debian not yet assigned CVE-2024-29944 not yet assigned priority: Debian including 2 source packages (firefox, firefox-esr), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2024-29944
gentoo high CVE-2024-29944: 1 GLSA(s) (202407-22), 2 atom(s) (www-client/firefox, www-client/firefox-bin); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2024-29944
redhat critical — https://access.redhat.com/security/cve/CVE-2024-29944
suse high CVE-2024-29944 severity important: SUSE including 33 source package names (MozillaFirefox, MozillaFirefox-115.9.1-112.206.1, …), 140 product×package rows across 54 product lines (Container suse/kiosk/firefox-esr, Image SLES12-SP5-SAP-Azure-LI-BYOS-Production, … (54 product lines)): Fixed 114, Known Not Affected 18, Will Not Fix 8. https://www.suse.com/security/cve/CVE-2024-29944/
ubuntu medium CVE-2024-29944 medium priority: Ubuntu including 8 source packages (firefox, mozjs102, …), 42 status rows across 6 suites (bionic, focal, jammy, mantic, noble, upstream): DNE 18, ignored 16, not-affected 5, needs-triage 2, released 1. https://ubuntu.com/security/CVE-2024-29944

Affected software / configurations for CVE-2024-29944

Vendor Product Version Raw CPE
mozilla firefox < 115.9.1 cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
mozilla firefox <= 124.0.1 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

References for CVE-2024-29944

cvelogic Threat Intelligence