Which versions of Ex1800T Firmware are affected by CVE-2025-2369?

Organizations using TOTOLINK EX1800T face significant risk from CVE-2025-2369, a buffer overflow vulnerability rated CVSS 8.7.

Is there a public PoC exploit available for CVE-2025-2369?

Yes, a public proof-of-concept exploit is available for CVE-2025-2369. Prioritise patching immediately. EPSS: 0.6%.

How to fix or mitigate CVE-2025-2369?

Within 7 days: Identify all affected systems running TOTOLINK EX1800T and apply vendor patches promptly. Monitor vendor channels for patch availability.

Ex1800T Firmware CVE-2025-2369

Q: What is the CVSS score of CVE-2025-2369?

CVE-2025-2369 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.6%.

HIGH

Buffer Overflow (CWE-119)

2025-03-17 cna@vuldb.com

Buffer Overflow Ex1800T Firmware TOTOLINK

8.7

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.7 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:31 vuln.today

PoC Detected

Apr 07, 2025 - 20:47 vuln.today

Public exploit code

CVE Published

Mar 17, 2025 - 09:15 nvd

HIGH 8.7

DescriptionCVE.org

A vulnerability was found in TOTOLINK EX1800T up to 9.1.0cu.2112_B20220316. It has been classified as critical. Affected is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument admpass leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

A vulnerability was found in TOTOLINK EX1800T up to 9.1.0cu.2112_B20220316. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. A vulnerability was found in TOTOLINK EX1800T up to 9.1.0cu.2112_B20220316. It has been classified as critical. Affected is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument admpass leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Affected products include: Totolink Ex1800T Firmware. Version information: up to 9.1.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.