CVE-2025-5600

9.3 criticalEPSS 1.3%

Critical (9.3) in totolink ex1200t firmware. EPSS 1.3% chance of exploitation in the next 30 days.

A vulnerability, which was classified as critical, has been found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This issue affects the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument LangType leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

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

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
CWEs: CWE-787, CWE-119, CWE-121
Published: 2025-06-04
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

totolink:ex1200t_firmware

References

https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulnerability-204b1876cd6e80709ce8dab4778dce55
https://vuldb.com/?ctiid.311087
https://vuldb.com/?id.311087
https://vuldb.com/?submit.588075
https://www.totolink.net/

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