CVE-2023-32206: mozilla firefox Out-of-bounds Read
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-32206DEBIAN-CVE-2023-32206
Published 02-06-2023Last modified 27-05-2025
Vulnerability summary
CVE-2023-32206 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in mozilla firefox. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 52.3% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.70%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 31 · Related 9DLA-3417-1DLA-3421-1DSA-5400-1DSA-5403-1MGASA-2023-0171MGASA-2023-0172OPENSUSE-SU-2024:12920-1OPENSUSE-SU-2024:12921-1OPENSUSE-SU-2024:14572-1RHSA-2023:3137RHSA-2023:3138RHSA-2023:3139RHSA-2023:3140RHSA-2023:3141RHSA-2023:3142RHSA-2023:3143RHSA-2023:3149RHSA-2023:3150RHSA-2023:3151RHSA-2023:3152RHSA-2023:3153RHSA-2023:3154RHSA-2023:3155RHSA-2023:3220RHSA-2023:3221SUSE-SU-2023:2173-1SUSE-SU-2023:2175-1SUSE-SU-2023:2176-1SUSE-SU-2023:2211-1USN-6074-1USN-6075-1
Timeline
- 02-06-2023PublishedVulnerability first disclosed.
- 27-05-2025Last modifiedVulnerability information updated.
Description
An out-of-bound read could have led to a crash in the RLBox Expat driver. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.70%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
0.00 pp
From 0.70% on 18-09-2026
18-09-202618-10-2026
EPSS score0.70%
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< 113.0+build2-0ubuntu0.18.04.1 | < 113.0+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, < 113 | < 113.0
- firefox_esr≥ unspecified, < 102.11 | < 102.11
- thunderbird≥ unspecified, < 102.11 | < 102.11
Debian2 products
- firefox-esr< 102.11.0esr-1
- thunderbird< 1:102.11.0-1
3 vendors · 12 products
References
13 links- security.gentoo.org/glsa/202312-03Vendor Advisory
- security.gentoo.org/glsa/202401-10Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-16/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-17/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-18/Vendor Advisory
