CVE-2022-29909: mozilla firefox Incorrect Default Permissions
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2022-29909DEBIAN-CVE-2022-29909
Published 22-12-2022Last modified 16-04-2025
Vulnerability summary
CVE-2022-29909 is a high (CVSS 8.8) Incorrect Default Permissions vulnerability in mozilla firefox. EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 57.9% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.86%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 28 · Related 10DLA-2994-1DLA-3020-1DSA-5129-1DSA-5141-1MGASA-2022-0162MGASA-2022-0163OPENSUSE-SU-2024:12044-1OPENSUSE-SU-2024:12045-1OPENSUSE-SU-2024:14572-1RHSA-2022:1701RHSA-2022:1702RHSA-2022:1703RHSA-2022:1704RHSA-2022:1705RHSA-2022:1724RHSA-2022:1725RHSA-2022:1726RHSA-2022:1727RHSA-2022:1730RHSA-2022:4589RHSA-2022:4590SUSE-RU-2022:1579-1SUSE-SU-2022:1719-1SUSE-SU-2022:1731-1SUSE-SU-2022:1748-1SUSE-SU-2022:1757-1USN-5411-1USN-5435-1
Timeline
- 22-12-2022PublishedVulnerability first disclosed.
- 16-04-2025Last modifiedVulnerability information updated.
Description
Documents in deeply-nested cross-origin browsing contexts could have obtained permissions granted to the top-level origin, bypassing the existing prompt and wrongfully inheriting the top-level permissions. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.86%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
+0.01 pp
From 0.85% on 19-09-2026
19-09-202619-10-2026
EPSS score0.86%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu7 products
- firefox< 100.0+build2-0ubuntu0.18.04.1 | < 100.0+build2-0ubuntu0.20.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- mozjs78All versions (No fix recorded)
Mozilla3 products
- firefox≥ unspecified, < 100 | < 100.0
- firefox_esr≥ unspecified, < 91.9 | < 91.9
- thunderbird≥ unspecified, < 91.9 | < 91.9
Debian2 products
- firefox-esr< 91.9.0esr-1
- thunderbird< 1:91.9.0-1
3 vendors · 12 products
References
12 links- www.mozilla.org/security/advisories/mfsa2022-16/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-18/Mailing List
- www.mozilla.org/security/advisories/mfsa2022-17/Vendor Advisory
