SARA / Free Tools / CVE / CVE-2023-29548

CVE-2023-29548 — A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optim

A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

CVSS

6.5 MEDIUM

EPSS

0.69% (top 50.00%)

CWE

—

Published

2023-06-02T17:15:12.880

Last modified

2026-08-19T15:29:21.807

CVSS vector

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

01What is this vulnerability?

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

Published: 2023-06-02T17:15:12.880
Last modified: 2026-08-19T15:29:21.807

09References

bugzilla.mozilla.org — https://bugzilla.mozilla.org/show_bug.cgi?id=1822754
www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2023-13/
www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2023-14/
www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2023-15/
bugzilla.mozilla.org — https://bugzilla.mozilla.org/show_bug.cgi?id=1822754
www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2023-13/
www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2023-14/
www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2023-15/

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