Return registers were overwritten which could have allowed an attacker to execute arbitrary code. *Note:* This issue only affected Armv7-A systems. Other operating systems are unaffected. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.
Conclusion & alert: CVE-2024-2607 is rated High Exploit Risk (68.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.12%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 1.67% | 1.12% | -0.56% |
| 2 | 2026-05-29 | 1.45% | 1.67% | +0.22% |
| 3 | 2026-03-16 | — | 1.45% | — |
Full EPSS history (22 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.1 | 3.1 | HIGH |
|
2.2 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-2607: 3 source package rows (firefox, firefox-esr, thunderbird); 150 state rows across 3 repos (3.19-community, 3.22-community, edge-community); fixed 1, open 149. | https://security.alpinelinux.org/vuln/CVE-2024-2607 |
debian
|
not yet assigned | CVE-2024-2607 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-2024-2607 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2024-2607 |
suse
|
high | CVE-2024-2607 severity important: SUSE including 37 source package names (MozillaFirefox, MozillaFirefox-115.9.0-112.203.2, …), 148 product×package rows across 55 product lines (Container suse/kiosk/firefox-esr, Image SLES12-SP5-SAP-Azure-LI-BYOS-Production, … (55 product lines)): Fixed 147, Will Not Fix 1. | https://www.suse.com/security/cve/CVE-2024-2607/ |
ubuntu
|
medium | CVE-2024-2607 medium priority: Ubuntu including 8 source packages (firefox, mozjs102, …), 42 status rows across 6 suites (bionic, focal, jammy, mantic, noble, upstream): DNE 17, ignored 15, not-affected 4, released 4, needs-triage 2. | https://ubuntu.com/security/CVE-2024-2607 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | firefox | < 115.9.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* |
| mozilla | firefox | < 124.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* |
| mozilla | thunderbird | < 115.9.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1879939 | Exploit Issue Tracking Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2024/03/msg00022.html | Mailing List |
| https://lists.debian.org/debian-lts-announce/2024/03/msg00028.html | Mailing List |
| https://www.mozilla.org/security/advisories/mfsa2024-12/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2024-13/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2024-14/ | Vendor Advisory |