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Description

A security vulnerability has been detected in Totolink A3300R 17.0.0cu.557_b20221024. Affected by this issue is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument vlanPriLan3 leads to command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

PUBLISHED Reserved 2026-03-30 | Published 2026-03-31 | Updated 2026-04-02 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Command Injection

Injection

Product status

17.0.0cu.557_b20221024
affected

Timeline

2026-03-30:Advisory disclosed
2026-03-30:VulDB entry created
2026-03-30:VulDB entry last update

Credits

LvHW (VulDB User) reporter

References

vuldb.com/vuln/354246 (VDB-354246 | Totolink A3300R cstecgi.cgi setIptvCfg command injection) vdb-entry technical-description

vuldb.com/vuln/354246/cti (VDB-354246 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/779147 (Submit #779147 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection) third-party-advisory

github.com/...A3300R/tree/main/A3300R_vlanPriLan3_cmd_inject exploit

www.totolink.net/ product

cve.org (CVE-2026-5178)

nvd.nist.gov (CVE-2026-5178)

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