Postfix 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with…
Priority LOW 12CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Postfix 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with the Linux 2.6 kernel, leaks epoll file descriptors during execution of "non-Postfix" commands, which allows local users to cause a denial of service (application slowdown or exit) via a crafted command, as demonstrated by a command in a .forward file.
Why it matters now
EPSS 0.00701 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
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 · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:* | 2.6 | Running on | Linux |
| cpe:2.3:a:postfix:postfix:2.4:*:*:*:*:*:*:* | 2.4 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.0:*:*:*:*:*:*:* | 2.4.0 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.1:*:*:*:*:*:*:* | 2.4.1 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.2:*:*:*:*:*:*:* | 2.4.2 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.3:*:*:*:*:*:*:* | 2.4.3 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.4:*:*:*:*:*:*:* | 2.4.4 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.5:*:*:*:*:*:*:* | 2.4.5 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.6:*:*:*:*:*:*:* | 2.4.6 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.7:*:*:*:*:*:*:* | 2.4.7 | Vulnerable | Postfix |
- cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:* Versions 2.6 Running on ·Linux
- cpe:2.3:a:postfix:postfix:2.4:*:*:*:*:*:*:* Versions 2.4 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.0:*:*:*:*:*:*:* Versions 2.4.0 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.1:*:*:*:*:*:*:* Versions 2.4.1 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.2:*:*:*:*:*:*:* Versions 2.4.2 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.3:*:*:*:*:*:*:* Versions 2.4.3 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.4:*:*:*:*:*:*:* Versions 2.4.4 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.5:*:*:*:*:*:*:* Versions 2.4.5 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.6:*:*:*:*:*:*:* Versions 2.4.6 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.7:*:*:*:*:*:*:* Versions 2.4.7 Vulnerable ·Postfix
Show 5 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:postfix:postfix:2.4.8:*:*:*:*:*:*:* | 2.4.8 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.5.1:*:*:*:*:*:*:* | 2.5.1 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.5.2:*:*:*:*:*:*:* | 2.5.2 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.5.3:*:*:*:*:*:*:* | 2.5.3 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.6:*:*:*:*:*:*:* | 2.6 | Vulnerable | Postfix |
- cpe:2.3:a:postfix:postfix:2.4.8:*:*:*:*:*:*:* Versions 2.4.8 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.5.1:*:*:*:*:*:*:* Versions 2.5.1 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.5.2:*:*:*:*:*:*:* Versions 2.5.2 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.5.3:*:*:*:*:*:*:* Versions 2.5.3 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.6:*:*:*:*:*:*:* Versions 2.6 Vulnerable ·Postfix
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2008-3889
- 2026-10-03 Alias added: GHSA-qgmw-69g2-f48g
References
More Postfix vulnerabilities
- TI-2011-01499 The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and… CVSS 2.0MEDIUM 6.8
- TI-2011-00345 The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x… CVSS 2.0MEDIUM 6.8
- TI-2023-28393 Postfix through 3.8.5 allows SMTP smuggling unless configured with… CVSS 3.1MEDIUM 5.3
- TI-2017-07491 Postfix before 2.11.10, 3.0.x before 3.0.10, 3.1.x before 3.1.6, and 3.2.x before 3.2.2… CVSS 3.0HIGH 7.8
- TI-2026-32009 Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a… CVSS 3.1HIGH 7.5
- TI-2012-00748 Multiple SQL injection vulnerabilities in Postfix Admin (aka postfixadmin) before 2.3.5… CVSS 2.0MEDIUM 6.5
Sources
- CVE-2008-3889 · CVE Program
- CVE-2008-3889 · NVD
- FIRST EPSS
- GHSA-qgmw-69g2-f48g · GitHub Advisory Database · CC BY 4.0
- CVE-2008-3889 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences