CVE-2023-29534: mozilla firefox_focus
Vulnerability summary
CVE-2023-29534 is a critical (CVSS 9.1) vulnerability in mozilla firefox_focus. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 19-06-2023PublishedVulnerability first disclosed.
- 11-12-2024Last modifiedVulnerability information updated.
Description
Different techniques existed to obscure the fullscreen notification in Firefox and Focus for Android. These could have led to potential user confusion and spoofing attacks. *This bug only affects Firefox and Focus for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox for Android < 112 and Focus for Android < 112.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- NVDNIST9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.71%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
+0.01 pp
From 0.70% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu5 products
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- mozjs78All versions (No fix recorded)
- mozjs91All versions (No fix recorded)
Mozilla4 products
- firefox_focus< 112.0
- firefox for android≥ unspecified, < 112
- firefox_mobile< 112.0
- focus for android≥ unspecified, < 112
2 vendors · 9 products
References
11 links- bugzilla.mozilla.org/show_bug.cgi?id=1816007Permissions Required
- bugzilla.mozilla.org/show_bug.cgi?id=1816059Permissions Required
- bugzilla.mozilla.org/show_bug.cgi?id=1821155Permissions Required
- bugzilla.mozilla.org/show_bug.cgi?id=1821576Permissions Required
- bugzilla.mozilla.org/show_bug.cgi?id=1821906Permissions Required
- bugzilla.mozilla.org/show_bug.cgi?id=1822298Permissions Required
- bugzilla.mozilla.org/show_bug.cgi?id=1822305Permissions Required
- www.mozilla.org/security/advisories/mfsa2023-13/Vendor Advisory