SUSE firefox · security update for firefox
Affects SUSE firefoxSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 9.8 Critical : upgrade the Red Hat redhat/firefox package to 140.9.1 as a priority.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 140.9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 7 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade the Red Hat redhat/firefox package to 140.9.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Red Hatredhat/firefoxpkg:rpm/redhat/firefoxOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available and should be applied promptly. The update to Firefox ESR 140.9.1 and Thunderbird ESR 140.9.1 or later versions (including Firefox 149.0.2 and Thunderbird 149.0.2) resolves these vulnerabilities. Refer to the Red Hat advisory RHSA-2026:7672 and the update instructions at https://access.redhat.com/articles/11258 for detailed remediation steps.
Description
This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.9.1 ESR (bsc#1261663). - MFSA 2026-27: * CVE-2026-5731: memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2. * CVE-2026-5732: incorrect boundary conditions, integer overflow in the Graphics: Text component. * CVE-2026-5734: memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2.
References
- access.redhat.com/errata/RHSA-2026:7672 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2451805 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2451819 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2455897 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2455901 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2455908 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_7672.json (opens in a new tab)
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_20486-1.json (opens in a new tab)
- bugzilla.suse.com/1261663 (opens in a new tab)
- suse.com/security/cve/CVE-2026-5731/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-5732/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-5734/ (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:8459 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_8459.json (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/rhsa-2026_7672.json (opens in a new tab)
- lists.suse.com/pipermail/suse-liberty-linux-updates/2026-April/005137.html (opens in a new tab)
- suse.com/security/cve/CVE-2026-33416/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-33636/ (opens in a new tab)