7.5

CVE-2026-19654: redhat enterprise_linux Out-of-bounds Read

CVSS: 7.5v3.1HighModified
AliasesRHSA-2026:66405RHSA-2026:67583RHSA-2026:67584
Published 12-08-2026Last modified 20-10-2026
Open JSON

Vulnerability summary

CVE-2026-19654 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in redhat enterprise_linux. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.56%
0%100%
Low · +0.11 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 1
RHSA-2026:80817RHSA-2026:84576SUSE-SU-2026:4611-1

Timeline

  1. 12-08-2026
    PublishedVulnerability first disclosed.
  2. 20-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.56%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

+0.11 pp

From 0.46% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.56%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat42 products
  • enterprise_linuxEOL6.0 | 7.0 | 8.0 | 9.0 | 10.0
  • rsyslog< 0:8.2412.0-1.el10_0.1 | < 0:8.2510.0-2.el9_8.1 | < 0:8.2510.0-5.el10_2.1 | < 0:8.2310.0-4.el9_4.1
  • rsyslog-crypto< 0:8.2412.0-1.el10_0.1 | < 0:8.2510.0-2.el9_8.1 | < 0:8.2510.0-5.el10_2.1 | < 0:8.2310.0-4.el9_4.1
  • rsyslog-crypto-debuginfo< 0:8.2412.0-1.el10_0.1 | < 0:8.2510.0-2.el9_8.1 | < 0:8.2510.0-5.el10_2.1 | < 0:8.2310.0-4.el9_4.1
  • rsyslog-debuginfo< 0:8.2412.0-1.el10_0.1 | < 0:8.2510.0-2.el9_8.1 | < 0:8.2510.0-5.el10_2.1 | < 0:8.2310.0-4.el9_4.1
Chainguard4 products
  • rsyslog-mmanonAll versions (No fix recorded)
  • rsyslog-mmdblookupAll versions (No fix recorded)
  • rsyslog-rabbitmq< 8.2608.0-r2
  • rsyslog-snmp< 8.2608.0-r2
Wolfi4 products
  • rsyslog-mmanonAll versions (No fix recorded)
  • rsyslog-mmdblookupAll versions (No fix recorded)
  • rsyslog-rabbitmq< 8.2608.0-r2
  • rsyslog-snmp< 8.2608.0-r2
Debian1 product
  • rsyslogAll versions (No fix recorded) | < 8.2504.0-1+deb13u1 | < 8.2608.0-1
Rsyslog1 product
Ubuntu1 product
  • rsyslogAll versions (No fix recorded) | < 8.2112.0-2ubuntu2.4 | < 8.2312.0-3ubuntu9.3 | < 8.2512.0-1ubuntu4.1

6 vendors · 53 products

References

23 links
Show all 23 references