Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through…
Priority MEDIUM 46CWE-134Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-134 and the CVSS impact.
Summary
Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through 2.2.1 and 3.x through 3.0.3, when login debugging (DEBUG_LOGIN) is enabled, allows remote attackers to execute arbitrary code.
Why it matters now
EPSS 0.10906 95th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:inter7:courier-imap:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | Inter7 |
| cpe:2.3:a:inter7:courier-imap:1.7:*:*:*:*:*:*:* | 1.7 | Vulnerable | Inter7 |
| cpe:2.3:a:inter7:courier-imap:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | Inter7 |
| cpe:2.3:a:inter7:courier-imap:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | Inter7 |
| cpe:2.3:a:inter7:courier-imap:2.1.1:*:*:*:*:*:*:* | 2.1.1 | Vulnerable | Inter7 |
| cpe:2.3:a:inter7:courier-imap:2.1.2:*:*:*:*:*:*:* | 2.1.2 | Vulnerable | Inter7 |
| cpe:2.3:a:inter7:courier-imap:2.2.0:*:*:*:*:*:*:* | 2.2.0 | Vulnerable | Inter7 |
| cpe:2.3:a:inter7:courier-imap:2.2.1:*:*:*:*:*:*:* | 2.2.1 | Vulnerable | Inter7 |
- cpe:2.3:a:inter7:courier-imap:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·Inter7
- cpe:2.3:a:inter7:courier-imap:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·Inter7
- cpe:2.3:a:inter7:courier-imap:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·Inter7
- cpe:2.3:a:inter7:courier-imap:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Inter7
- cpe:2.3:a:inter7:courier-imap:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·Inter7
- cpe:2.3:a:inter7:courier-imap:2.1.2:*:*:*:*:*:*:* Versions 2.1.2 Vulnerable ·Inter7
- cpe:2.3:a:inter7:courier-imap:2.2.0:*:*:*:*:*:*:* Versions 2.2.0 Vulnerable ·Inter7
- cpe:2.3:a:inter7:courier-imap:2.2.1:*:*:*:*:*:*:* Versions 2.2.1 Vulnerable ·Inter7
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-0777
- 2026-10-03 Alias added: GHSA-25j9-9wxp-hpp7
References
More Inter7 Courier-imap vulnerabilities
- TI-2004-00194 Multiple buffer overflows in (1) iso2022jp.c or (2) shiftjis.c for Courier-IMAP before… CVSS 2.0HIGH 7.5
- TI-2003-00036 SQL injection vulnerability in the PostgreSQL auth module for courier 0.40 and earlier… CVSS 2.0HIGH 7.5
Sources
- CVE-2004-0777 · CVE Program
- CVE-2004-0777 · NVD
- FIRST EPSS
- GHSA-25j9-9wxp-hpp7 · GitHub Advisory Database · CC BY 4.0
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