imudp in rsyslog 4.x before 4.1.2, 3.21 before 3.21.9 beta, and 3.20 before 3.20.2…
Priority LOW 25Published · 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
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
imudp in rsyslog 4.x before 4.1.2, 3.21 before 3.21.9 beta, and 3.20 before 3.20.2 generates a message even when it is sent by an unauthorized sender, which allows remote attackers to cause a denial of service (disk consumption) via a large number of spurious messages.
Why it matters now
EPSS 0.01171 67th 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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rsyslog:rsyslog:3.12.1:*:*:*:*:*:*:* | 3.12.1 | Vulnerable | rsyslog |
| cpe:2.3:a:rsyslog:rsyslog:3.20.0:*:*:*:*:*:*:* | 3.20.0 | Vulnerable | rsyslog |
| cpe:2.3:a:rsyslog:rsyslog:4.1.0:*:*:*:*:*:*:* | 4.1.0 | Vulnerable | rsyslog |
| cpe:2.3:a:rsyslog:rsyslog:4.1.1:*:*:*:*:*:*:* | 4.1.1 | Vulnerable | rsyslog |
- cpe:2.3:a:rsyslog:rsyslog:3.12.1:*:*:*:*:*:*:* Versions 3.12.1 Vulnerable ·rsyslog
- cpe:2.3:a:rsyslog:rsyslog:3.20.0:*:*:*:*:*:*:* Versions 3.20.0 Vulnerable ·rsyslog
- cpe:2.3:a:rsyslog:rsyslog:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·rsyslog
- cpe:2.3:a:rsyslog:rsyslog:4.1.1:*:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·rsyslog
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2008-5618
- 2026-10-03 Alias added: GHSA-vp77-fmxj-574r
References
More Rsyslog vulnerabilities
- TI-2019-12711 An issue was discovered in Rsyslog v8.1908.0. CVSS 3.1CRITICAL 9.8
- TI-2019-12712 An issue was discovered in Rsyslog v8.1908.0. CVSS 3.1CRITICAL 9.8
- TI-2019-12710 contrib/pmdb2diag/pmdb2diag.c in Rsyslog v8.1908.0 allows out-of-bounds access because the level length is mishandled. CVSS 3.1CRITICAL 9.8
- TI-2017-09315 The zmq3 input and output modules in rsyslog before 8.28.0 interpreted description fields… CVSS 3.0CRITICAL 9.8
- TI-2022-08713 Buffer overflow in TCP syslog server (receiver) components in rsyslog CVSS 3.1HIGH 8.1
- TI-2014-02955 rsyslog before 7.6.6 and 8.x before 8.4.1 and sysklogd 1.5 and earlier allows remote… CVSS 2.0HIGH 7.5
Sources
- CVE-2008-5618 · CVE Program
- CVE-2008-5618 · NVD
- FIRST EPSS
- GHSA-vp77-fmxj-574r · GitHub Advisory Database · CC BY 4.0
- CVE-2008-5618 · Red Hat security data · CC BY 4.0
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