Under certain circumstances, a call to the <code>bind</code> function may have resulted in the incorrect realm. This may have created a vulnerability relating to JavaScript-implemented sandboxes such as SES. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.
Conclusion & alert: CVE-2023-29549 is rated Low Risk (34.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.33%). Mandatory action: 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.
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 | 0.19% | 0.33% | +0.14% |
| 2 | 2026-06-03 | 0.12% | 0.19% | +0.07% |
| 3 | 2025-03-30 | — | 0.12% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-29549: 1 source package rows (firefox); 74 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 74. | https://security.alpinelinux.org/vuln/CVE-2023-29549 |
debian
|
not yet assigned | CVE-2023-29549 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-2023-29549 |
gentoo
|
high | CVE-2023-29549: 1 GLSA(s) (202305-35), 2 atom(s) (www-client/firefox, www-client/firefox-bin); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-29549 |
ubuntu
|
medium | CVE-2023-29549 medium priority: Ubuntu including 7 source packages (firefox, mozjs38, …), 70 status rows across 10 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): DNE 38, ignored 19, not-affected 9, released 3, needs-triage 1. | https://ubuntu.com/security/CVE-2023-29549 |
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1823042 | Issue Tracking |
| https://www.mozilla.org/security/advisories/mfsa2023-13/ | Vendor Advisory |