What’s Vulnerable › Vulnerabilities

CVE-2023-26921

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-04 · updated 2026-06-17
• Weakness: CWE-78

Description

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

Affected products

• Quectel Ag550Qcn Firmware: all versions

References

• https://github.com/closethe/AG550QCN_CommandInjection_ql_atfwd/blob/main/README.md
• https://github.com/closethe/AG550QCN_CommandInjection_ql_atfwd/blob/main/README.md

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