Critical severity9.8NVD Advisory· Published Jul 21, 2026· Updated Jul 24, 2026
CVE-2026-16360
CVE-2026-16360
Description
Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Affected products
21cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <153.0.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <115.38.0
- (no CPE)range: 115.37, 140.12
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <140.13.0
- (no CPE)range: 140.13
- osv-coords16 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-docker-selenium-compatpkg:apk/chainguard/firefox-esrpkg:apk/chainguard/firefox-esr-140pkg:apk/wolfi/firefoxpkg:apk/wolfi/firefox-docker-selenium-compatpkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/mozilla-nspr&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/mozilla-nss&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/rust-cbindgen&distro=openSUSE%20Leap%2016.0
< 153.0-r0+ 15 more
- (no CPE)range: < 153.0-r0
- (no CPE)range: < 153.0-r0
- (no CPE)range: < 153.0-r1
- (no CPE)range: < 140.13.0-r0
- (no CPE)range: < 153.0-r0
- (no CPE)range: < 153.0-r0
- (no CPE)range: < 140.13.0-1.el10_2
- (no CPE)range: < 140.13.0-1.el9_8.alma.1
- (no CPE)range: < 140.13.0-1.el10_2.alma.1
- (no CPE)range: < 140.13.0-160000.1.1
- (no CPE)range: < 153.0-1.1
- (no CPE)range: < 140.13.0-1.1
- (no CPE)range: < 140.13.0-1.1
- (no CPE)range: < 4.39-160000.1.1
- (no CPE)range: < 3.125-160000.1.1
- (no CPE)range: < 0.29.4+git0-160000.1.1
Patches
Vulnerability mechanics
References
7- www.mozilla.org/security/advisories/mfsa2026-68/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-69/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-70/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-71/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-72/nvdVendor Advisory
- bugzilla.mozilla.org/buglist.cginvdBroken Link
- bugzilla.mozilla.org/buglist.cginvdPermissions Required
News mentions
1- ⚡ Weekly Recap: Rogue AI Agents, Check Point Exploit, Slopsquatting, ClickFix Lures and MoreThe Hacker News · Jul 27, 2026