Home/CVE/A vulnerability, which was classified as critical, has been found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This issue
CVE

CVE-2025-5600

A vulnerability, which was classified as critical, has been found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This issue

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.

CRITICAL · CVSS 9.8 EPSS 0.01197
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

1
totolink ex1200t firmwareall versions
⚠

Public Exploits & PoCs

1
pockn0sinna.notion.site · TOTOLINK-EX1200T-stack-based-BufferOverflow-vulnerability...kn0sinna.notion.site
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Jun 2025 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://vuldb.com/?ctiid.311087Permissions Required
https://vuldb.com/?id.311087Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.588075Third Party AdvisoryVDB Entry
https://www.totolink.net/Product
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