SUSE mutt · Security update for mutt
Affects SUSE muttSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited.
Data as of 26 Oct 2026, 12:55 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 8 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10muttpkg:deb/ubuntu/mutt?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSmuttpkg:deb/ubuntu/mutt?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 25.10muttpkg:deb/ubuntu/mutt?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSmuttpkg:deb/ubuntu/mutt?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSmuttpkg:deb/ubuntu/mutt?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSmuttpkg:deb/ubuntu/mutt?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
This update for mutt fixes the following issues - CVE-2026-43859: `strfcpy` used instead of `memcpy` for the IMAP `auth_cram` MD5 digest (bsc#1263897). - CVE-2026-43860: truncation of `hash_passwd` by one byte for IMAP `auth_cram` MD5 digest (bsc#1263896). - CVE-2026-43861: missing check for `\0` in `url_pct_decode` (bsc#1263895). - CVE-2026-43862: mishandling of the `imap_auth_gss` security level (bsc#1263894). - CVE-2026-43863: infinite loop in `data_object_to_stream` in `crypt-gpgme.c` (bsc#1263893). - CVE-2026-43864: NULL pointer dereference in function `show_sig_summary` (bsc#1263892).
References
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/suse-su-2026_2300-1.json (opens in a new tab)
- suse.com/support/update/announcement/2026/suse-su-20262300-1/ (opens in a new tab)
- lists.suse.com/pipermail/sle-updates/2026-June/047187.html (opens in a new tab)
- bugzilla.suse.com/1263892 (opens in a new tab)
- bugzilla.suse.com/1263893 (opens in a new tab)
- bugzilla.suse.com/1263894 (opens in a new tab)
- bugzilla.suse.com/1263895 (opens in a new tab)
- bugzilla.suse.com/1263896 (opens in a new tab)
- bugzilla.suse.com/1263897 (opens in a new tab)
- bugzilla.suse.com/1264047 (opens in a new tab)
- suse.com/security/cve/CVE-2026-43859/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-43860/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-43861/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-43862/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-43863/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-43864/ (opens in a new tab)