Critical severity9.8NVD Advisory· Published Jul 21, 2026· Updated Aug 10, 2026
CVE-2026-16389
CVE-2026-16389
Description
Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
15cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <153.0.0
- (no CPE)range: <153
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <153.0
- (no CPE)range: <153
- osv-coords10 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-docker-selenium-compatpkg:apk/wolfi/firefoxpkg:apk/wolfi/firefox-docker-selenium-compatpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaFirefox&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+ 9 more
- (no CPE)range: < 153.0-r0
- (no CPE)range: < 153.0-r0
- (no CPE)range: < 153.0-r0
- (no CPE)range: < 153.0-r0
- (no CPE)range: < 153.1.0-160000.1.2
- (no CPE)range: < 153.0-1.1
- (no CPE)range: < 153.0-1.1
- (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
4- www.mozilla.org/security/advisories/mfsa2026-68/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-71/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
- lists.debian.org/debian-lts-announce/2026/08/msg00019.htmlnvd
News mentions
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