SB2026012852 - Multiple vulnerabilities in Suricata

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026012852

SB2026012852 - Multiple vulnerabilities in Suricata

Published: January 28, 2026

Security Bulletin ID SB2026012852
CSH Severity
High
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

High 14% Medium 86%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2026-22259)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources while parsing DNP3 traffic. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


2) Resource exhaustion (CVE-ID: CVE-2026-22261)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within xff handling. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


3) Stack-based buffer overflow (CVE-ID: CVE-2026-22262)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when saving a set. A remote unauthenticated attacker can trigger stack-based buffer overflow and cause a denial of service condition on the target system.


4) Resource exhaustion (CVE-ID: CVE-2026-22263)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to inefficiency in http1 headers parsing. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


5) Use-after-free (CVE-ID: CVE-2026-22264)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within alert queue expansion. A remote attacker can affect integrity and availability on the target application


6) Uncontrolled Recursion (CVE-ID: CVE-2026-22260)

CWE-ID: CWE-674 - Uncontrolled Recursion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to poorly bounded recursion in decompression. A remote attacker can cause a denial of service condition on the target system.


7) Resource exhaustion (CVE-ID: CVE-2026-22258)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can use specially crafted DCERPC traffic, trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References