CVE-2023-37201
An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.76% probability · 55th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird · debian/debian linux
- Source
- security@mozilla.org
EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1826002Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/07/msg00006.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00015.html
- https://www.debian.org/security/2023/dsa-5450Third Party Advisory
- https://www.debian.org/security/2023/dsa-5451Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-22/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-23/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-24/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1826002Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/07/msg00006.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00015.html
- https://www.debian.org/security/2023/dsa-5450Third Party Advisory
- https://www.debian.org/security/2023/dsa-5451Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-22/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-23/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-24/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.