What’s Vulnerable › Vulnerabilities

CVE-2026-9458: Totolink A8000RU Web Management cstecgi.cgi setWanCfg os 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: none known
• Published: 2026-05-25 · updated 2026-07-23
• Weakness: CWE-77

Description

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument enabled leads to os command injection. The attack may be performed from remote. The exploit is publicly available and might be used.

Affected products

• Totolink A8000RU: 7.1cu.643_b20200521

References

• https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_346/README.md
• https://vuldb.com/submit/813457
• https://vuldb.com/vuln/365439
• https://vuldb.com/vuln/365439/cti
• https://www.totolink.net/

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