CVE-2025-1931
published 2025-03-04CVE-2025-1931: It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This…
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.54%
44.6th percentile
It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 136.0-1 (sid) | firefox 136.0-1 (sid) |
| debian | firefox-esr | < firefox 136.0-1 (sid) | firefox 136.0-1 (sid) |
| debian | thunderbird | < firefox 136.0-1 (sid) | firefox 136.0-1 (sid) |
| mozilla | firefox | < 115.21.0 | 115.21.0 |
| mozilla | firefox | < 136.0 | 136.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 136.0+build3-0ubuntu0.20.04.1 | 136.0+build3-0ubuntu0.20.04.1 |
| mozilla | firefox | >= 116.0 < 128.8.0 | 128.8.0 |
| mozilla | thunderbird | < 128.8.0 | 128.8.0 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1~deb11u1 | 1:128.8.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1~deb12u1 | 1:128.8.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1 | 1:128.8.0esr-1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1 | 1:128.8.0esr-1 |
| mozilla | thunderbird | >= 129.0 < 136.0 | 136.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2025-07-22
CVE-2025-4083 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart thunderbird to
make all the necessary changes.
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2025-03-06·CVSS 7.5
CVE-2025-1932 [HIGH] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Several security issues were fixed in Firefox.
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2025-1933,
CVE-2025-1934, CVE-2025-1935, CVE-2025-1936, CVE-2025-1937, CVE-2025-1942)
It was discovered that Firefox did not properly handle WebTransport
connection, leading to a use-after-free vulnerability. An attacker could
potentially exploit this issue to cause a denial of service.
(CVE-2025-1931)
Ivan Fratric discovered that Firefox did not properly handle XSLT sorting,
leading to a out-of-bounds access vulnerability. An attacker
Red Hat
firefox: Use-after-free in WebTransportChild
vendor_redhat·2025-03-04·CVSS 7.5
CVE-2025-1931 [HIGH] CWE-416 firefox: Use-after-free in WebTransportChild
firefox: Use-after-free in WebTransportChild
It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Affected
Package: firefox-flatpak-container (Red Hat E
Debian
CVE-2025-1931: firefox - It was possible to cause a use-after-free in the content process side of a WebTr...
vendor_debian·2025·CVSS 7.5
CVE-2025-1931 [HIGH] CVE-2025-1931: firefox - It was possible to cause a use-after-free in the content process side of a WebTr...
It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
Scope: local
sid: resolved (fixed in 136.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-17: CVE-2025-1931
vendor_mozilla·CVSS 7.5
CVE-2025-1931 [HIGH] Mozilla Foundation Security Advisory 2025-17: CVE-2025-1931
Mozilla Foundation Security Advisory 2025-17
CVE: CVE-2025-1931
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 136
Mozilla
Mozilla Foundation Security Advisory 2025-14: CVE-2025-1931
vendor_mozilla·CVSS 7.5
CVE-2025-1931 [HIGH] Mozilla Foundation Security Advisory 2025-14: CVE-2025-1931
Mozilla Foundation Security Advisory 2025-14
CVE: CVE-2025-1931
Product: Firefox
Impact: high
Fixed in: Firefox 136
Mozilla
Mozilla Foundation Security Advisory 2025-16: CVE-2025-1931
vendor_mozilla·CVSS 7.5
CVE-2025-1931 [HIGH] Mozilla Foundation Security Advisory 2025-16: CVE-2025-1931
Mozilla Foundation Security Advisory 2025-16
CVE: CVE-2025-1931
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 128.8
Mozilla
Mozilla Foundation Security Advisory 2025-18: CVE-2025-1931
vendor_mozilla·CVSS 7.5
CVE-2025-1931 [HIGH] Mozilla Foundation Security Advisory 2025-18: CVE-2025-1931
Mozilla Foundation Security Advisory 2025-18
CVE: CVE-2025-1931
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 128.8
Mozilla
Mozilla Foundation Security Advisory 2025-15: CVE-2025-1931
vendor_mozilla·CVSS 7.5
CVE-2025-1931 [HIGH] Mozilla Foundation Security Advisory 2025-15: CVE-2025-1931
Mozilla Foundation Security Advisory 2025-15
CVE: CVE-2025-1931
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 115.21
VulDB
Mozilla Firefox up to 135 WebTransport use after free (Nessus ID 222870)
vuldb·2026-10-01·CVSS 7.5
CVE-2025-1931 [HIGH] Mozilla Firefox up to 135 WebTransport use after free (Nessus ID 222870)
A vulnerability has been found in Mozilla Firefox up to 135 and classified as critical. The impacted element is an unknown function of the component WebTransport. This manipulation causes use after free.
This vulnerability is registered as CVE-2025-1931. Remote exploitation of the attack is possible. No exploit is available.
The affected component should be upgraded.
OSV
firefox vulnerabilities
osv·2025-03-06·CVSS 7.5
CVE-2025-1933 [HIGH] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2025-1933,
CVE-2025-1934, CVE-2025-1935, CVE-2025-1936, CVE-2025-1937, CVE-2025-1942)
It was discovered that Firefox did not properly handle WebTransport
connection, leading to a use-after-free vulnerability. An attacker could
potentially exploit this issue to cause a denial of service.
(CVE-2025-1931)
Ivan Fratric discovered that Firefox did not properly handle XSLT sorting,
leading to a out-of-bounds access vulnerability. An attacker could
potentially exploit this issue to cause a denial of servic
OSV
CVE-2025-1931: It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash
osv·2025-03-04·CVSS 7.5
CVE-2025-1931 [HIGH] CVE-2025-1931: It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash
It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
GHSA
GHSA-qwhp-hhhx-5xg8: It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash
ghsa_unreviewed·2025-03-04
CVE-2025-1931 [HIGH] CWE-416 GHSA-qwhp-hhhx-5xg8: It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash
It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, and Firefox ESR < 128.8.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1944126https://www.mozilla.org/security/advisories/mfsa2025-14/https://www.mozilla.org/security/advisories/mfsa2025-15/https://www.mozilla.org/security/advisories/mfsa2025-16/https://www.mozilla.org/security/advisories/mfsa2025-17/https://www.mozilla.org/security/advisories/mfsa2025-18/https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html
2025-03-04
Published