CVE-2025-1013

high

Published 2025-02-05 · Modified 2025-02-11

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

8.0

Description

A race condition could have led to private browsing tabs being opened in normal browsing windows. This could have resulted in a potential privacy leak. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2025-1013 NameCVE-2025-1013 DescriptionA race condition could have led to private browsing tabs being opened in normal browsing windows. This could have resulted in a potential privacy leak. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135. SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE…

CVE-2025-1013

Name	CVE-2025-1013
Description	A race condition could have led to private browsing tabs being opened in normal browsing windows. This could have resulted in a potential privacy leak. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4044-1, DLA-4045-1, DSA-5858-1, DSA-5861-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
firefox (PTS)	sid	151.0.3-1	fixed
firefox-esr (PTS)	bullseye	115.14.0esr-1~deb11u1	vulnerable
	bullseye (security)	140.11.0esr-1~deb11u1	fixed
	bookworm	140.10.2esr-1~deb12u1	fixed
	bookworm (security)	140.11.0esr-1~deb12u1	fixed
	trixie	140.10.2esr-1~deb13u1	fixed
	trixie (security)	140.11.0esr-1~deb13u1	fixed
	forky, sid	140.11.0esr-1	fixed
thunderbird (PTS)	bullseye	1:115.12.0-1~deb11u1	vulnerable
	bullseye (security)	1:140.11.0esr-1~deb11u1	fixed
	bookworm	1:140.10.1esr-1~deb12u1	fixed
	bookworm (security)	1:140.11.0esr-1~deb12u1	fixed
	trixie	1:140.10.1esr-1~deb13u1	fixed
	trixie (security)	1:140.11.0esr-1~deb13u1	fixed
	forky, sid	1:140.11.0esr-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
firefox	source	(unstable)	135.0-1
firefox-esr	source	bullseye	128.7.0esr-1~deb11u1	DLA-4044-1
firefox-esr	source	bookworm	128.7.0esr-1~deb12u1	DSA-5858-1
firefox-esr	source	(unstable)	128.7.0esr-1
thunderbird	source	bullseye	1:128.7.0esr-1~deb11u1	DLA-4045-1
thunderbird	source	bookworm	1:128.7.0esr-1~deb12u1	DSA-5861-1
thunderbird	source	(unstable)	1:128.7.0esr-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2025-07/#CVE-2025-1013
https://www.mozilla.org/en-US/security/advisories/mfsa2025-09/#CVE-2025-1013
https://www.mozilla.org/en-US/security/advisories/mfsa2025-10/#CVE-2025-1013

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2025-07/#CVE-2025-1013https://www.mozilla.org/en-US/security/advisories/mfsa2025-09/#CVE-2025-1013https://www.mozilla.org/en-US/security/advisories/mfsa2025-10/#CVE-2025-1013

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`128.7.0esr-1`
sid	Fixed	`135.0-1`
forky	Fixed	`128.7.0esr-1`
bullseye	Fixed	`128.7.0esr-1~deb11u1`
bookworm	Fixed	`128.7.0esr-1~deb12u1`

Red Hat Fixed 2 releases

Version	Status	Fixed in
9	Fixed	—
8	Fixed	—

Rocky Linux Fixed 1 release

Version	Status	Fixed in
8	Fixed	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.