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Vulnerability record · CVE-2017-12588 · published 6 August 2017

CVE-2017-12588: Rsyslog vulnerability

Rsyslog · Rsyslog

The zmq3 input and output modules in rsyslog before 8.28.0 interpreted description fields as format strings, possibly allowing a format string attack with unspecified impact.

9.8 CVSS 3.0 Critical EPSS 2.8% · top 13.9% CWE-134 · CWE-134
9.8CVSS 3.0 base score, v2 7.5
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References
17 Jun 2026Last modified by NVD

Description

The zmq3 input and output modules in rsyslog before 8.28.0 interpreted description fields as format strings, possibly allowing a format string attack with unspecified impact.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/rsyslog/rsyslog/blob/master/ChangeLog Release NotesThird Party Advisory
https://github.com/rsyslog/rsyslog/commit/062d0c671a29f7c6f7dff4a2f1f35df375bbb30b Third Party Advisory
https://github.com/rsyslog/rsyslog/pull/1565 PatchThird Party Advisory
https://github.com/rsyslog/rsyslog/blob/master/ChangeLog Release NotesThird Party Advisory
https://github.com/rsyslog/rsyslog/commit/062d0c671a29f7c6f7dff4a2f1f35df375bbb30b Third Party Advisory
https://github.com/rsyslog/rsyslog/pull/1565 PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20241227-0009/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-17041Rsyslog out-of-bounds write vulnerabilityAn issue was discovered in Rsyslog v8.1908.0. contrib/pmaixforwardedfrom/pmaixforwardedfrom.c has a heap overflow in the parser for AIX log messages.…EPSS 4.4%9.8CVE-2019-17042Rsyslog improper input validation vulnerabilityAn issue was discovered in Rsyslog v8.1908.0. contrib/pmcisconames/pmcisconames.c has a heap overflow in the parser for Cisco log messages. The parse…EPSS 3.1%9.8CVE-2019-17040Rsyslog out-of-bounds read vulnerabilitycontrib/pmdb2diag/pmdb2diag.c in Rsyslog v8.1908.0 allows out-of-bounds access because the level length is mishandled.EPSS 2.4%8.5CVE-2008-5617Rsyslog permissions and access controls vulnerabilityThe ACL handling in rsyslog 3.12.1 to 3.20.0, 4.1.0, and 4.1.1 does not follow $AllowedSender directive, which allows remote attackers to bypass inte…EPSS 2.2%8.1CVE-2022-24903Rsyslog classic buffer overflow vulnerabilityRsyslog is a rocket-fast system for log processing. Modules for TCP syslog reception have a potential heap buffer overflow when octet-counted framing…EPSS 3.9%7.5CVE-2026-19654Rsyslog out-of-bounds read vulnerabilityA unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame …EPSS 0.47%7.5CVE-2018-16881Rsyslog integer overflow vulnerabilityA denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket,…EPSS 2.2%7.5CVE-2014-3634Sysklogd project sysklogd memory buffer overflow vulnerabilityrsyslog before 7.6.6 and 8.x before 8.4.1 and sysklogd 1.5 and earlier allows remote attackers to cause a denial of service (crash), possibly execute…EPSS 7.5%

Source: NIST National Vulnerability Database (record CVE-2017-12588), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.