CVE-2023-37201
An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
02 Description
An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.75% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 54.6% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-07-05 08:51Z3 YR AGO
- Last updated
- 2025-02-13 16:56Z1 YR AGO
- Reserved
- 2023-06-28
- Assigning CNA
- mozilla
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- 8e559d1b15b543fc2962cd5ba56971047f4e6b9b20b2b87dda46a59c9c1fbbd2
05 Affected products
06 References
- bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1826002
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-22/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-23/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-24/
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/07/msg00006.html
- www.debian.orghttps://www.debian.org/security/2023/dsa-5450
- www.debian.orghttps://www.debian.org/security/2023/dsa-5451
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/07/msg00015.html
07 Fixed in
AlmaLinux 8
- firefox Fixed in 102.13.0-2.el8_8.alma
- thunderbird Fixed in 102.13.0-2.el8_8.alma
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- firefox Fixed in 102.13.0-2.el9_2.alma
- firefox-x11 Fixed in 102.13.0-2.el9_2.alma
- thunderbird Fixed in 102.13.0-2.el9_2.alma
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- firefox Fixed in 102.13.0-2.el8_8.alma
- thunderbird Fixed in 102.13.0-2.el8_8.alma
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- firefox Fixed in 102.13.0-2.el9_2.alma
- firefox-x11 Fixed in 102.13.0-2.el9_2.alma
- thunderbird Fixed in 102.13.0-2.el9_2.alma
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- firefox-esr Fixed in 102.13.0esr-1~deb12u1
- thunderbird Fixed in 1:102.13.0-1~deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- firefox-esr Fixed in 102.13.0esr-1
- thunderbird Fixed in 1:102.13.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- firefox-esr Fixed in 102.13.0esr-1
- thunderbird Fixed in 1:102.13.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- firefox Fixed in 115.0+build2-0ubuntu0.20.04.3
- thunderbird Fixed in 1:102.13.0+build1-0ubuntu0.20.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- thunderbird Fixed in 1:102.13.0+build1-0ubuntu0.22.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.