What’s Vulnerable › Vulnerabilities

CVE-2021-4242: Sapido BR270n/BRC76n/GR297/RB1732 syscmd.htm os command injection

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-11-30 · updated 2026-06-17
• Weakness: CWE-707

Description

A vulnerability was found in Sapido BR270n, BRC76n, GR297 and RB1732 and classified as critical. Affected by this issue is some unknown functionality of the file ip/syscmd.htm. The manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-214592.

Affected products

• Sapido Br270N Firmware: 2.1.03
• Sapido Brc76N Firmware: 2.1.03
• Sapido Gr297N Firmware: 2.1.3
• Sapido Rb-1732 Firmware: 2.0.43

References

• https://blog.csdn.net/qq_44159028/article/details/114590267
• https://github.com/smallpiggy/Sapido--rce/blob/main/Sapido%E8%B7%AF%E7%94%B1%E5%99%A8-rce.py
• https://vuldb.com/?id.214592
• https://blog.csdn.net/qq_44159028/article/details/114590267
• https://github.com/smallpiggy/Sapido--rce/blob/main/Sapido%E8%B7%AF%E7%94%B1%E5%99%A8-rce.py
• https://vuldb.com/?id.214592

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