CVE-2026-5677

HIGH 7.3

Totolink A7100RU cstecgi.cgi CsteSystem os command injection

CVSS Score

7.3

EPSS Score

2.4%

EPSS Percentile

85th

A security flaw has been discovered in Totolink A7100RU 7.4cu.2313_b20191024. Impacted is the function CsteSystem of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument resetFlags results in os command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a7100ru
Published	Apr 6, 2026
Last Updated	Apr 7, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A7100RU

7.4cu.2313_b20191024

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/355504 vuldb.com: https://vuldb.com/vuln/355504/cti vuldb.com: https://vuldb.com/submit/792606 github.com: https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_184/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHuster2 (VulDB User)