# CVE-2026-19654

## Summary

- **CVE ID:** CVE-2026-19654
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-125
- **Published:** Aug 12, 2026
- **Last Modified:** Sep 15, 2026

## Description

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.

## Affected Products

- Red Hat — Red Hat Enterprise Linux 10.0 Extended Update Support (0:8.2412.0-1.el10_0.1)
- Red Hat — Red Hat Enterprise Linux 10 (0:8.2510.0-5.el10_2.1)
- Red Hat — Red Hat Enterprise Linux 9 (0:8.2510.0-2.el9_8.1)

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-19654)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2502868)
- [CNA](https://github.com/rsyslog/rsyslog/security/advisories/GHSA-cj5r-wh2m-7w29)
- [CNA](https://access.redhat.com/errata/RHSA-2026:66405)
- [CNA](https://access.redhat.com/errata/RHSA-2026:67583)
- [CNA](https://access.redhat.com/errata/RHSA-2026:67584)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.46%
- **EPSS Percentile:** 38.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._