CVE-2026-7823

CRITICAL 9.8

Totolink A8000RU cstecgi.cgi setAppFilterCfg os command injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setAppFilterCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a8000ru
Published	May 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A8000RU

7.1cu.643_b20200521

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/361075 vuldb.com: https://vuldb.com/vuln/361075/cti vuldb.com: https://vuldb.com/submit/807775 github.com: https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_330/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHust2 (VulDB User)