CVE-2023-26921 | BDVDB-2026-199176 Detail

Description#

OS Command Injection vulnerability in quectel AG550QCN allows attackers to execute arbitrary commands via ql_atfwd.

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

No public exploit known

9.8 Critical

2.6%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 86.0.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Command Injection

No specific action is recorded in the source data. Check the references for vendor guidance.

No version data in the source record.

Not available

9.8 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).