CVE-2026-5101 | THREATINT

Description

A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument lanIp leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

PUBLISHED Reserved 2026-03-29 | Published 2026-03-29 | Updated 2026-03-30 | 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

2026-03-29:	Advisory disclosed
2026-03-29:	VulDB entry created
2026-03-29:	VulDB entry last update

Credits

LtzHuster2 (VulDB User) reporter

References

vuldb.com/vuln/354126 (VDB-354126 | Totolink A3300R Parameter cstecgi.cgi setLanCfg command injection) vdb-entry technical-description

vuldb.com/vuln/354126/cti (VDB-354126 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/779128 (Submit #779128 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection) third-party-advisory

github.com/...zheng/vul_db/blob/main/A3300R/vul_39/README.md exploit

www.totolink.net/ product

cve.org (CVE-2026-5101)

nvd.nist.gov (CVE-2026-5101)

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