Description
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | — | 152 |
| Mozilla | Thunderbird | — | 152 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nss | 2:3.124-1 | — |
| Debian 13 | nss | 2:3.110-1+deb13u3 | — |
| Debian 12 | nss | 2:3.87.1-1+deb12u3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | nss | 2:3.120-1ubuntu2.1 | USN-8481-1 |
| Ubuntu 25.10 | nss | 2:3.114-1ubuntu0.2 | USN-8481-1 |
| Ubuntu 24.04 LTS | mozjs102 +1 | No fix yet | — |
| Ubuntu 24.04 LTS | nss | 2:3.98-1ubuntu0.2 | USN-8481-1 |
| Ubuntu 22.04 LTS | mozjs78 +3 | No fix yet | — |
| Ubuntu 22.04 LTS | nss | 2:3.98-0ubuntu0.22.04.4 | USN-8481-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | nss | No fix yet | — |
| Ubuntu Pro 18.04 LTS | nss | No fix yet | — |
| Ubuntu Pro 16.04 LTS | nss | No fix yet | — |
| Ubuntu Pro 14.04 LTS | nss | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 152.0-1.1 | openSUSE-SU-2026:11052-1 |
| openSUSE Tumbleweed | firefox-esr | 153.0-1.1 | openSUSE-SU-2026:11373-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | nspr +1 | 4.39.0-1.amzn2023.0.2 | ALAS2023-2026-3242 |
| Amazon Linux 2023 | nss +10 | 3.124.0-1.amzn2023.0.2 | ALAS2023-2026-3242 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | firefox | 152-r0 | — |
Advisories 5
- ALAS2023-2026-3242 Moderate: nss security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 26, 2026
- WID-SEC-2026-1959 Mozilla Firefox, Firefox ESR und Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 16, 2026
- openSUSE-SU-2026:11373-1 firefox-esr-153.0-1.1 on GA media SUSE / openSUSE Security Updates · Jul 26, 2026
- USN-8481-1 nss vulnerability Ubuntu Security Notices (USN) · Jun 30, 2026
- openSUSE-SU-2026:11052-1 MozillaFirefox-152.0-1.1 on GA media SUSE / openSUSE Security Updates · Jun 19, 2026