CVE-2026-2781

EUVD-2026-8502
Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 17%
Affected Products (NVD)
VendorProductVersion
mozillafirefox_esr
𝑥
< 140.8.0
mozillafirefox
𝑥
< 148.0
mozillathunderbird_esr
𝑥
< 140.8.0
mozillathunderbird
𝑥
< 148.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
151.0.1-1
fixed
firefox-esr
bookworm
140.10.2esr-1~deb12u1
fixed
bookworm (security)
140.11.0esr-1~deb12u1
fixed
bullseye
vulnerable
bullseye (security)
140.11.0esr-1~deb11u1
fixed
forky
140.11.0esr-1
fixed
sid
140.11.0esr-1
fixed
trixie
140.10.2esr-1~deb13u1
fixed
trixie (security)
140.11.0esr-1~deb13u1
fixed
nss
bookworm
2:3.87.1-1+deb12u2
fixed
bookworm (security)
2:3.87.1-1+deb12u2
fixed
bullseye
vulnerable
bullseye (security)
2:3.61-1+deb11u5
fixed
forky
2:3.123.1-1
fixed
sid
2:3.124-1
fixed
trixie
2:3.110-1+deb13u1
fixed
trixie (security)
2:3.110-1+deb13u2
fixed
thunderbird
bookworm
1:140.10.1esr-1~deb12u1
fixed
bookworm (security)
1:140.11.0esr-1~deb12u1
fixed
bullseye
vulnerable
bullseye (security)
1:140.11.0esr-1~deb11u1
fixed
forky
1:140.11.0esr-1
fixed
sid
1:140.11.0esr-1
fixed
trixie
1:140.10.1esr-1~deb13u1
fixed
trixie (security)
1:140.11.0esr-1~deb13u1
fixed
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
MozillaFirefox
suse enterprise desktop 15 SP7
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP4
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP5
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP6
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP7
140.8.0-150200.152.222.1
fixed
suse enterprise server 12 SP3
140.8.0-112.301.1
fixed
suse enterprise server 12 SP5
140.8.0-112.301.1
fixed
suse enterprise server 15 SP4
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP5
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP6
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP7
140.8.0-150200.152.222.1
fixed
MozillaFirefox-devel
suse enterprise desktop 15 SP7
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP4
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP5
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP6
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP7
140.8.0-150200.152.222.1
fixed
suse enterprise server 12 SP3
140.8.0-112.301.1
fixed
suse enterprise server 12 SP5
140.8.0-112.301.1
fixed
suse enterprise server 15 SP4
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP5
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP6
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP7
140.8.0-150200.152.222.1
fixed
MozillaFirefox-translations-common
suse enterprise desktop 15 SP7
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP4
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP5
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP6
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP7
140.8.0-150200.152.222.1
fixed
suse enterprise server 12 SP3
140.8.0-112.301.1
fixed
suse enterprise server 12 SP5
140.8.0-112.301.1
fixed
suse enterprise server 15 SP4
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP5
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP6
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP7
140.8.0-150200.152.222.1
fixed
MozillaFirefox-translations-other
suse enterprise desktop 15 SP7
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP4
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP5
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP6
140.8.0-150200.152.222.1
fixed
suse enterprise sap 15 SP7
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP4
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP5
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP6
140.8.0-150200.152.222.1
fixed
suse enterprise server 15 SP7
140.8.0-150200.152.222.1
fixed
MozillaThunderbird
suse enterprise desktop 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise sap 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise server 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise workstation 15 SP7
140.8.0-150200.8.260.1
fixed
MozillaThunderbird-translations-common
suse enterprise desktop 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise sap 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise server 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise workstation 15 SP7
140.8.0-150200.8.260.1
fixed
MozillaThunderbird-translations-other
suse enterprise desktop 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise sap 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise server 15 SP7
140.8.0-150200.8.260.1
fixed
suse enterprise workstation 15 SP7
140.8.0-150200.8.260.1
fixed
libfreebl3
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
libfreebl3-32bit
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
libsoftokn3
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
libsoftokn3-32bit
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
mozilla-nss
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
mozilla-nss-32bit
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
mozilla-nss-certs
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
mozilla-nss-certs-32bit
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
mozilla-nss-devel
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
mozilla-nss-sysinit
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
mozilla-nss-sysinit-32bit
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
mozilla-nss-tools
suse enterprise desktop 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise sap 15 SP7
3.112.3-150400.3.63.1
fixed
suse enterprise server 12 SP3
3.112.3-58.136.1
fixed
suse enterprise server 12 SP5
3.112.3-58.136.1
fixed
suse enterprise server 15 SP4
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP5
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP6
3.112.3-150400.3.63.1
fixed
suse enterprise server 15 SP7
3.112.3-150400.3.63.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
firefox
RHEL 9
0:140.8.0-2.el9_7
fixed
firefox-x11
RHEL 9
0:140.8.0-2.el9_7
fixed
thunderbird
RHEL 9
0:140.8.0-1.el9_7
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://bugzilla.mozilla.org/show_bug.cgi?id=2009552
https://www.mozilla.org/security/advisories/mfsa2026-13/
https://www.mozilla.org/security/advisories/mfsa2026-15/
https://www.mozilla.org/security/advisories/mfsa2026-16/
https://www.mozilla.org/security/advisories/mfsa2026-17/
https://www.mozilla.org/security/advisories/mfsa2026-31/
https://lists.debian.org/debian-lts-announce/2026/03/msg00012.html