🛡️ CVE-2022-36318 — firefox

🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-362 NVD

5.3

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

When visiting directory listings for chrome:// URLs as source text, some parameters were reflected. This vulnerability affects Firefox ESR < 102.1, Firefox ESR < 91.12, Firefox < 103, Thunderbird < 102.1, and Thunderbird < 91.12.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2022-36318 is classified as CWE-362: Race Condition. Concurrent operations share state without proper synchronisation, so timing decides whether the result is correct.

Affected software

CVE-2022-36318 is recorded against 3 packages.

firefox (fixed in 103.0)
firefox-esr (fixed in 91.12)
thunderbird (fixed in 91.12)

Timeline and source

Published on 22 December 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

bugzilla.mozilla.org
www.mozilla.org
www.mozilla.org
www.mozilla.org
www.mozilla.org
www.mozilla.org
bugzilla.mozilla.org
www.mozilla.org
www.mozilla.org
www.mozilla.org
www.mozilla.org
www.mozilla.org

CVE-2022-36318 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian Ubuntu

Details

Severity MEDIUM

CVSS Score 5.3

CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

CWE CWE-362

Public Exploit ✅ No

Source NVD

Published 2022-12-22

Updated 2026-08-11

Modified 2026-06-17

Fix URL N/A

Affected Packages

Software	From version	Fixed in
firefox	—	103.0
firefox-esr	—	91.12
thunderbird	—	91.12

References

Issue Tracking, Vendor Advisory https://bugzilla.mozilla.org/show_bug.cgi?id=1771774

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-28/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-29/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-30/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-31/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-32/

Issue Tracking, Vendor Advisory https://bugzilla.mozilla.org/show_bug.cgi?id=1771774

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-28/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-29/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-30/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-31/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-32/

🔗 NVD 🔗 Mitre

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