AUGUST 4, 2026
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Case File

CVE-2021-26731

CRITICAL · CVSS 9.1 EPSS 2.31%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-10-24 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. Exploitation may require the attacker to be authenticated.

CVE
CVE-2021-26731
Severity
CRITICAL
CVSS
9.1
EPSS
2.31%

Original NVD Description

Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_func function of spx_restservice allow an authenticated attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Related CVEs

Other vulnerabilities affecting the same vendor(s)