CVE-2022-45416: mozilla firefox Observable Discrepancy
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2022-45416DEBIAN-CVE-2022-45416
Published 22-12-2022Last modified 15-04-2025
Vulnerability summary
CVE-2022-45416 is a medium (CVSS 6.5) Observable Discrepancy vulnerability in mozilla firefox. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.9% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.69%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 32 · Related 10DLA-3196-1DLA-3199-1DSA-5282-1DSA-5284-1MGASA-2022-0427MGASA-2022-0428OPENSUSE-SU-2024:12518-1OPENSUSE-SU-2024:12519-1OPENSUSE-SU-2024:12532-1OPENSUSE-SU-2024:14572-1RHSA-2022:8543RHSA-2022:8544RHSA-2022:8545RHSA-2022:8547RHSA-2022:8548RHSA-2022:8549RHSA-2022:8550RHSA-2022:8552RHSA-2022:8553RHSA-2022:8554RHSA-2022:8555RHSA-2022:8556RHSA-2022:8561RHSA-2022:8580RHSA-2022:8979RHSA-2022:8980SUSE-SU-2022:4058-1SUSE-SU-2022:4083-1SUSE-SU-2022:4085-1SUSE-SU-2022:4247-1USN-5726-1USN-5824-1
Timeline
- 22-12-2022PublishedVulnerability first disclosed.
- 15-04-2025Last modifiedVulnerability information updated.
Description
Keyboard events reference strings like "KeyA" that were at fixed, known, and widely-spread addresses. Cache-based timing attacks such as Prime+Probe could have possibly figured out which keys were being pressed. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.69%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
+0.02 pp
From 0.67% on 19-09-2026
19-09-202619-10-2026
EPSS score0.69%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu6 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)
Mozilla3 products
- firefox≥ unspecified, < 107 | < 107.0
- firefox_esr≥ unspecified, < 102.5 | < 102.5
- thunderbird≥ unspecified, < 102.5 | < 102.5
Debian2 products
- firefox-esr< 102.5.0esr-1
- thunderbird< 1:102.5.0-1
3 vendors · 11 products
References
12 links- www.mozilla.org/security/advisories/mfsa2022-47/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-49/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-48/Vendor Advisory
