Stack-based buffer overflow in the browse_get_namespace function in imap/browse.c of Mutt 1.4.2.1 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via long namespaces received from the IMAP server.
Conclusion & alert: CVE-2006-3242 is rated Moderate Risk (60.6/100): CVSS High severity, with high exploitation likelihood (EPSS 5.89%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 7.54% | 5.89% | -1.65% |
| 2 | 2025-06-22 | 6.30% | 7.54% | +1.24% |
| 3 | 2025-03-30 | — | 6.30% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2006-3242 low priority: Debian including 1 source packages (mutt), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2006-3242 |
gentoo
|
normal | CVE-2006-3242: 1 GLSA(s) (200606-27), 1 atom(s) (mail-client/mutt); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-3242 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2006-3242 |
ubuntu
|
medium | CVE-2006-3242 medium priority: Ubuntu including 1 source packages (mutt), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. | https://ubuntu.com/security/CVE-2006-3242 |