PT-2026-42956 · Totolink · A8000Ru

Ltzhuster · Published 2026-05-24 · Updated 2026-05-24 · CVE-2026-9387

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Totolink A8000RU version 7.1cu.643 b20200521

Description A security flaw in the Web Management Interface allows remote attackers to perform OS command injection. This occurs through the manipulation of the resetFlags argument within the setUpgradeFW() function of the '/cgi-bin/cstecgi.cgi' endpoint.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

CVE-2026-9387

Affected Products

A8000Ru

References · 7

• 🔥 https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_334/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-9387 · Security Note
• https://vuldb.com/vuln/365350/cti · Note
• https://totolink.net · Note
• https://vuldb.com/submit/813433 · Note
• https://vuldb.com/vuln/365350 · Note
• https://t.me/CVEtracker/54783 · Telegram Post