The DKIM implementation in Exim 4.7x before 4.76 permits matching for DKIM identities to…
Priority LOW 39CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The DKIM implementation in Exim 4.7x before 4.76 permits matching for DKIM identities to apply to lookup items, instead of only strings, which allows remote attackers to execute arbitrary code or access a filesystem via a crafted identity.
Why it matters now
EPSS 0.03802 90th 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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| 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:4.72:*:*:*:*:*:*:* | 4.72 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.73:*:*:*:*:*:*:* | 4.73 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.74:*:*:*:*:*:*:* | 4.74 | Vulnerable | Exim |
| cpe:2.3:a:exim:exim:4.75:*:*:*:*:*:*:* | 4.75 | 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
- cpe:2.3:a:exim:exim:4.72:*:*:*:*:*:*:* Versions 4.72 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.73:*:*:*:*:*:*:* Versions 4.73 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.74:*:*:*:*:*:*:* Versions 4.74 Vulnerable ·Exim
- cpe:2.3:a:exim:exim:4.75:*:*:*:*:*:*:* Versions 4.75 Vulnerable ·Exim
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 2 products
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1407
- 2026-10-03 Alias added: GHSA-pq5j-h89p-xfxj
- 2026-10-31 EPSS moved to the 90th–95th percentile
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-2011-1407 · CVE Program
- CVE-2011-1407 · NVD
- FIRST EPSS
- GHSA-pq5j-h89p-xfxj · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1407 · 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