CVE-2026-5178

2.1 lowEPSS 4.1%

Low (2.1) in totolink a3300r firmware. EPSS 4.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

2.1 low

CVSS: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

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 4.1% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
CWEs: CWE-74, CWE-77
Published: 2026-03-31
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

totolink:a3300r_firmware

References

https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_vlanPriLan3_cmd_inject
https://vuldb.com/submit/779147
https://vuldb.com/vuln/354246
https://vuldb.com/vuln/354246/cti
https://www.totolink.net/

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