The open_log function in log.c in Exim 4.72 and earlier does not check the return value…
Priority LOW 31CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.
Why it matters now
EPSS 0.00379 32nd percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
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 · 67
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* | up to 4.72 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:2.10:*:*:*:*:*:*:* | 2.10 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:2.11:*:*:*:*:*:*:* | 2.11 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:2.12:*:*:*:*:*:*:* | 2.12 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.00:*:*:*:*:*:*:* | 3.00 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.01:*:*:*:*:*:*:* | 3.01 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.02:*:*:*:*:*:*:* | 3.02 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.03:*:*:*:*:*:*:* | 3.03 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.10:*:*:*:*:*:*:* | 3.10 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.11:*:*:*:*:*:*:* | 3.11 | Vulnerable | Exim |
- cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* Versions up to 4.72 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:2.10:*:*:*:*:*:*:* Versions 2.10 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:2.11:*:*:*:*:*:*:* Versions 2.11 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:2.12:*:*:*:*:*:*:* Versions 2.12 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.00:*:*:*:*:*:*:* Versions 3.00 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.01:*:*:*:*:*:*:* Versions 3.01 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.02:*:*:*:*:*:*:* Versions 3.02 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.03:*:*:*:*:*:*:* Versions 3.03 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.10:*:*:*:*:*:*:* Versions 3.10 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.11:*:*:*:*:*:*:* Versions 3.11 Vulnerable ·Exim
Show 57 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:exim:exim:3.12:*:*:*:*:*:*:* | 3.12 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.13:*:*:*:*:*:*:* | 3.13 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.14:*:*:*:*:*:*:* | 3.14 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.15:*:*:*:*:*:*:* | 3.15 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.16:*:*:*:*:*:*:* | 3.16 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.20:*:*:*:*:*:*:* | 3.20 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.21:*:*:*:*:*:*:* | 3.21 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.22:*:*:*:*:*:*:* | 3.22 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.30:*:*:*:*:*:*:* | 3.30 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.31:*:*:*:*:*:*:* | 3.31 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.32:*:*:*:*:*:*:* | 3.32 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.33:*:*:*:*:*:*:* | 3.33 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.34:*:*:*:*:*:*:* | 3.34 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.35:*:*:*:*:*:*:* | 3.35 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:3.36:*:*:*:*:*:*:* | 3.36 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.00:*:*:*:*:*:*:* | 4.00 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.01:*:*:*:*:*:*:* | 4.01 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.02:*:*:*:*:*:*:* | 4.02 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.03:*:*:*:*:*:*:* | 4.03 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.04:*:*:*:*:*:*:* | 4.04 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.05:*:*:*:*:*:*:* | 4.05 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.10:*:*:*:*:*:*:* | 4.10 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.11:*:*:*:*:*:*:* | 4.11 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.12:*:*:*:*:*:*:* | 4.12 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.14:*:*:*:*:*:*:* | 4.14 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.20:*:*:*:*:*:*:* | 4.20 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.21:*:*:*:*:*:*:* | 4.21 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.22:*:*:*:*:*:*:* | 4.22 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.23:*:*:*:*:*:*:* | 4.23 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.24:*:*:*:*:*:*:* | 4.24 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.30:*:*:*:*:*:*:* | 4.30 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.31:*:*:*:*:*:*:* | 4.31 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.32:*:*:*:*:*:*:* | 4.32 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.33:*:*:*:*:*:*:* | 4.33 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.34:*:*:*:*:*:*:* | 4.34 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.40:*:*:*:*:*:*:* | 4.40 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.41:*:*:*:*:*:*:* | 4.41 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.42:*:*:*:*:*:*:* | 4.42 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.43:*:*:*:*:*:*:* | 4.43 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.44:*:*:*:*:*:*:* | 4.44 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.50:*:*:*:*:*:*:* | 4.50 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.51:*:*:*:*:*:*:* | 4.51 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.52:*:*:*:*:*:*:* | 4.52 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.53:*:*:*:*:*:*:* | 4.53 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.54:*:*:*:*:*:*:* | 4.54 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.60:*:*:*:*:*:*:* | 4.60 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.61:*:*:*:*:*:*:* | 4.61 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.62:*:*:*:*:*:*:* | 4.62 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.63:*:*:*:*:*:*:* | 4.63 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.64:*:*:*:*:*:*:* | 4.64 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.65:*:*:*:*:*:*:* | 4.65 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.66:*:*:*:*:*:*:* | 4.66 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.67:*:*:*:*:*:*:* | 4.67 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.68:*:*:*:*:*:*:* | 4.68 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.69:*:*:*:*:*:*:* | 4.69 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:* | 4.70 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.71:*:*:*:*:*:*:* | 4.71 | Vulnerable | Exim |
- cpe:2.3:a:exim:exim:3.12:*:*:*:*:*:*:* Versions 3.12 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.13:*:*:*:*:*:*:* Versions 3.13 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.14:*:*:*:*:*:*:* Versions 3.14 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.15:*:*:*:*:*:*:* Versions 3.15 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.16:*:*:*:*:*:*:* Versions 3.16 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.20:*:*:*:*:*:*:* Versions 3.20 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.21:*:*:*:*:*:*:* Versions 3.21 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.22:*:*:*:*:*:*:* Versions 3.22 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.30:*:*:*:*:*:*:* Versions 3.30 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.31:*:*:*:*:*:*:* Versions 3.31 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.32:*:*:*:*:*:*:* Versions 3.32 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.33:*:*:*:*:*:*:* Versions 3.33 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.34:*:*:*:*:*:*:* Versions 3.34 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.35:*:*:*:*:*:*:* Versions 3.35 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:3.36:*:*:*:*:*:*:* Versions 3.36 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.00:*:*:*:*:*:*:* Versions 4.00 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.01:*:*:*:*:*:*:* Versions 4.01 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.02:*:*:*:*:*:*:* Versions 4.02 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.03:*:*:*:*:*:*:* Versions 4.03 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.04:*:*:*:*:*:*:* Versions 4.04 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.05:*:*:*:*:*:*:* Versions 4.05 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.10:*:*:*:*:*:*:* Versions 4.10 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.11:*:*:*:*:*:*:* Versions 4.11 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.12:*:*:*:*:*:*:* Versions 4.12 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.14:*:*:*:*:*:*:* Versions 4.14 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.20:*:*:*:*:*:*:* Versions 4.20 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.21:*:*:*:*:*:*:* Versions 4.21 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.22:*:*:*:*:*:*:* Versions 4.22 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.23:*:*:*:*:*:*:* Versions 4.23 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.24:*:*:*:*:*:*:* Versions 4.24 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.30:*:*:*:*:*:*:* Versions 4.30 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.31:*:*:*:*:*:*:* Versions 4.31 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.32:*:*:*:*:*:*:* Versions 4.32 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.33:*:*:*:*:*:*:* Versions 4.33 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.34:*:*:*:*:*:*:* Versions 4.34 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.40:*:*:*:*:*:*:* Versions 4.40 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.41:*:*:*:*:*:*:* Versions 4.41 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.42:*:*:*:*:*:*:* Versions 4.42 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.43:*:*:*:*:*:*:* Versions 4.43 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.44:*:*:*:*:*:*:* Versions 4.44 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.50:*:*:*:*:*:*:* Versions 4.50 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.51:*:*:*:*:*:*:* Versions 4.51 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.52:*:*:*:*:*:*:* Versions 4.52 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.53:*:*:*:*:*:*:* Versions 4.53 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.54:*:*:*:*:*:*:* Versions 4.54 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.60:*:*:*:*:*:*:* Versions 4.60 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.61:*:*:*:*:*:*:* Versions 4.61 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.62:*:*:*:*:*:*:* Versions 4.62 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.63:*:*:*:*:*:*:* Versions 4.63 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.64:*:*:*:*:*:*:* Versions 4.64 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.65:*:*:*:*:*:*:* Versions 4.65 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.66:*:*:*:*:*:*:* Versions 4.66 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.67:*:*:*:*:*:*:* Versions 4.67 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.68:*:*:*:*:*:*:* Versions 4.68 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.69:*:*:*:*:*:*:* Versions 4.69 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:* Versions 4.70 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.71:*:*:*:*:*:*:* Versions 4.71 Vulnerable ·Exim
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 4 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-0017
- 2026-10-03 Alias added: GHSA-6w36-rjfw-vf62
References
More Exim vulnerabilities
- TI-2019-12627 Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than… KEVCVSS 3.1CRITICAL 9.8
- TI-2019-07471 OS command injection in exim KEVCVSS 3.1CRITICAL 9.8
- TI-2018-04965 An issue was discovered in the base64d function in the SMTP listener in Exim before… KEVCVSS 3.1CRITICAL 9.8
- TI-2010-04077 Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70… KEVCVSS 3.1CRITICAL 9.8
- TI-2010-04078 Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of… KEVCVSS 3.1HIGH 7.8
- TI-2025-19707 SQL injection in Exim CVSS 3.1CRITICAL 9.8
Sources
- CVE-2011-0017 · CVE Program
- CVE-2011-0017 · NVD
- FIRST EPSS
- GHSA-6w36-rjfw-vf62 · GitHub Advisory Database · CC BY 4.0
- CVE-2011-0017 · 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