Buffer overflow in Mutt 1.4.0 and possibly earlier versions, 1.5.x up to 1.5.3, and other programs that use Mutt code such as Balsa before 2.0.10, allows a remote malicious IMAP server to cause a denial of service (crash) and possibly execute arbitrary code via a crafted folder.
Conclusion & alert: CVE-2003-0140 is rated Moderate Risk (63.9/100): CVSS High severity, with high exploitation likelihood (EPSS 4.49%, 90th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +2.31% over the last day, indicating growing attacker interest. 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 | 2.18% | 4.49% | +2.31% |
| 2 | 2025-12-02 | 1.90% | 2.18% | +0.29% |
| 3 | 2025-03-30 | — | 1.90% | — |
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
|
not yet assigned | CVE-2003-0140 not yet assigned 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-2003-0140 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2003-0140 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mutt | mutt | 1.3.12 | cpe:2.3:a:mutt:mutt:1.3.12:*:*:*:*:*:*:* |
| mutt | mutt | 1.3.16 | cpe:2.3:a:mutt:mutt:1.3.16:*:*:*:*:*:*:* |
| mutt | mutt | 1.3.17 | cpe:2.3:a:mutt:mutt:1.3.17:*:*:*:*:*:*:* |
| mutt | mutt | 1.3.22 | cpe:2.3:a:mutt:mutt:1.3.22:*:*:*:*:*:*:* |
| mutt | mutt | 1.3.24 | cpe:2.3:a:mutt:mutt:1.3.24:*:*:*:*:*:*:* |
| mutt | mutt | 1.3.25 | cpe:2.3:a:mutt:mutt:1.3.25:*:*:*:*:*:*:* |
| mutt | mutt | 1.3.27 | cpe:2.3:a:mutt:mutt:1.3.27:*:*:*:*:*:*:* |
| mutt | mutt | 1.4.0 | cpe:2.3:a:mutt:mutt:1.4.0:*:*:*:*:*:*:* |
| mutt | mutt | 1.5.3 | cpe:2.3:a:mutt:mutt:1.5.3:*:*:*:*:*:*:* |