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CVE-2026-19654

7.5 high SSVC exploitation: none Modified
NVD · CVE.org

A unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame recovery can cause an invalid internal message length and terminate rsyslogd. No confidentiality or integrity impact, privilege escalation, or code execution has been identified. imtcp and the default imptcp framing modes are not affected.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 4

  1. References+1 references (now 12)NVD modified 2026-10-21 21:17
  2. References+1 references (now 11)NVD modified 2026-10-20 22:19
  3. References+2 references (now 10)NVD modified 2026-10-19 11:17
  4. First seenCVSS 7.5 · rsyslog, redhatNVD modified 2026-10-12 20:17

Affected (CPE criteria) 6

  • cpe:2.3:a:rsyslog:rsyslog:*:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

References 12