CVE-2026-61548

A flaw was found in Rsyslog, a system for log processing. A remote unauthenticated attacker could exploit a stack buffer overflow vulnerability within the optional mmpstrucdata plugin. By sending a specially crafted RFC5424 message containing an oversized structured-data parameter, the attacker c...

PT-2026-105464

Stack-based Buffer Overflow in mmpstrucdata rsyslog plugin...

CVE-2026-93403

Stack-based Buffer Overflow in mmpstrucdata rsyslog plugin...

UBUNTU-CVE-2026-93403

Stack-based Buffer Overflow in mmpstrucdata rsyslog plugin...

Linux Distros Unpatched Vulnerability : CVE-2026-93403

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Debian Linux - rsyslog - None Ubuntu Linux - Stack-based Buffer Overflow in mmpstrucdata rsyslog plugin CVE-2026-93403 Note that Nessus relies on the presence o...

AZL-103314 CVE-2026-61548 affecting package rsyslog 8.2308.0-6

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

CVE-2026-61548

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

CVE-2026-61548 Rsyslog: mmpstrucdata stack buffer overflow with oversized RFC5424 structured data

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

CVE-2026-61548

Rsyslog (a log processing system) versions 7.5.4 through 8.2606.0 contain a stack buffer overflow in the optional mmpstrucdata plugin. The parseSD_PARAM function stores RFC5424 parameter values in a fixed 32 KB stack buffer and calls parsePARAM_VALUE without supplying the destination size. A remo...

CVE-2026-61548 Rsyslog: mmpstrucdata stack buffer overflow with oversized RFC5424 structured data

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

CVE-2026-61548 Rsyslog: mmpstrucdata stack buffer overflow with oversized RFC5424 structured data

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

EUVD-2026-83185

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

CVE-2026-61548

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

CVE-2026-61548

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

CVE-2026-61548: Stack-based Buffer Overflow

Rsyslog is a rocket-fast system for log processing. From 7.5.4 until 8.2606.0, the optional mmpstrucdata plugin's parseSDPARAM function in plugins/mmpstrucdata/mmpstrucdata.c stores RFC5424 parameter values in a fixed pVal32 1024 stack buffer and calls parsePARAMVALUE without supplying the...

SUSE-SU-2026:23145-1 Security update for rsyslog

This update for rsyslog fixes the following issues: - CVE-2026-61548: crafted RFC 5424 messages to mmpstrucdata can lead to a stack overwrite bsc1272414. - input sequence during oversize-frame recovery in imptcp can cause denial of service bsc1271910. Changes for rsyslog: - added a devel...

SUSE-SU-2026:23122-1 Security update for rsyslog

This update for rsyslog fixes the following issues: - CVE-2026-61548: crafted RFC 5424 messages to mmpstrucdata can lead to a stack overwrite bsc1272414. - input sequence during oversize-frame recovery in imptcp can cause denial of service bsc1271910. Changes for rsyslog: - added a devel...

SUSE-SU-2026:3498-1 Security update for rsyslog

This update for rsyslog fixes the following issues: - CVE-2026-61548: parsing of crafted RFC 5424 messages in mmpstrucdata can lead to a stack buffer overflow bsc1272414. - Configuration-dependent issue in the optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd...

SUSE SLES15: rsyslog / rsyslog-module-gssapi / rsyslog-module-gtls / etc (SUSE-SU-2026:3442-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:3442-1 advisory. This update for rsyslog fixes the following issue: - CVE-2026-61548: parsing of crafted RFC 5424 messages in mmpstrucdata can lead to a stac...

SUSE-SU-2026:3442-1 Security update for rsyslog

This update for rsyslog fixes the following issue: - CVE-2026-61548: parsing of crafted RFC 5424 messages in mmpstrucdata can lead to a stack buffer overflow bsc1272414...