IBM Secure Proxy 6.1.0.0-6.2.1.2 DoS via listener IP/port validation
CVE-2026-18525 Published on November 8, 2026

IBM Sterling Secure Proxy is vulnerable to multiple issues
IBM Secure Proxy 6.1.0.0 through 6.2.1.2 could allow a remote authenticated attacker to cause a denial of service due to improper validation of listener IP address and port.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-18525 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.


Products Associated with CVE-2026-18525

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IBM Secure Proxy

Affected Versions

IBM Secure Proxy: