What’s Vulnerable › Vulnerabilities

CVE-2026-5176: Totolink A3300R cstecgi.cgi setSyslogCfg command injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-31 · updated 2026-06-17
• Weakness: CWE-74

Description

A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. Affected is the function setSyslogCfg of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument provided results in command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

Affected products

• Totolink A3300R: 17.0.0cu.557_b20221024

References

• https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_rtLogServer_cmd_inject
• https://vuldb.com/submit/779145
• https://vuldb.com/vuln/354244
• https://vuldb.com/vuln/354244/cti
• https://www.totolink.net/

Get alerted when CVE-2026-5176 or the next vulnerability affects your stack