CVE-2025-1933

EUVD-2025-7438
On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 65%
Affected Products (NVD)
VendorProductVersion
mozillafirefox_esr
𝑥
< 115.21.0
mozillafirefox
𝑥
< 136.0
mozillafirefox_esr
116.0 ≤
𝑥
< 128.8.0
mozillathunderbird
𝑥
< 128.8
mozillathunderbird
129.0 ≤
𝑥
< 136.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
151.0-1
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
140.10.2esr-1
fixed
sid
140.11.0esr-1
fixed
trixie
140.10.2esr-1~deb13u1
fixed
trixie (security)
140.11.0esr-1~deb13u1
fixed
thunderbird
bookworm
1:140.10.1esr-1~deb12u1
fixed
bookworm (security)
1:140.10.2esr-1~deb12u1
fixed
bullseye
vulnerable
bullseye (security)
1:140.11.0esr-1~deb11u1
fixed
forky
1:140.10.2esr-1
fixed
sid
1:140.11.0esr-1
fixed
trixie
1:140.10.1esr-1~deb13u1
fixed
trixie (security)
1:140.10.2esr-1~deb13u1
fixed
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
MozillaFirefox
suse enterprise desktop 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise desktop 15 SP7
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP3
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP4
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP5
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP7
128.8.0-150200.152.173.1
fixed
suse enterprise server 12 SP3
128.8.0-112.249.3
fixed
suse enterprise server 12 SP5
128.8.0-112.249.3
fixed
suse enterprise server 15 SP2
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP3
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP4
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP5
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP7
128.8.0-150200.152.173.1
fixed
MozillaFirefox-devel
suse enterprise desktop 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP3
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP4
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP5
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise server 12 SP3
128.8.0-112.249.3
fixed
suse enterprise server 12 SP5
128.8.0-112.249.3
fixed
suse enterprise server 15 SP2
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP3
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP4
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP5
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP6
128.8.0-150200.152.173.1
fixed
MozillaFirefox-translations-common
suse enterprise desktop 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise desktop 15 SP7
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP3
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP4
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP5
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP7
128.8.0-150200.152.173.1
fixed
suse enterprise server 12 SP3
128.8.0-112.249.3
fixed
suse enterprise server 12 SP5
128.8.0-112.249.3
fixed
suse enterprise server 15 SP2
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP3
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP4
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP5
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP7
128.8.0-150200.152.173.1
fixed
MozillaFirefox-translations-other
suse enterprise desktop 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise desktop 15 SP7
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP3
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP4
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP5
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise sap 15 SP7
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP2
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP3
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP4
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP5
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP6
128.8.0-150200.152.173.1
fixed
suse enterprise server 15 SP7
128.8.0-150200.152.173.1
fixed
MozillaThunderbird
suse enterprise desktop 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise desktop 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise sap 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise sap 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise server 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise server 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise workstation 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise workstation 15 SP7
128.8.0-150200.8.203.1
fixed
MozillaThunderbird-translations-common
suse enterprise desktop 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise desktop 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise sap 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise sap 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise server 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise server 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise workstation 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise workstation 15 SP7
128.8.0-150200.8.203.1
fixed
MozillaThunderbird-translations-other
suse enterprise desktop 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise desktop 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise sap 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise sap 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise server 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise server 15 SP7
128.8.0-150200.8.203.1
fixed
suse enterprise workstation 15 SP6
128.8.0-150200.8.203.1
fixed
suse enterprise workstation 15 SP7
128.8.0-150200.8.203.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
firefox
RHEL 9
0:128.8.0-1.el9_5
fixed
firefox-x11
RHEL 9
0:128.8.0-1.el9_5
fixed