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A950rg Firmware CVE-2025-4496

HIGH
Buffer Overflow (CWE-119)
2025-05-10 cna@vuldb.com
8.7
CVSS 4.0 · NVD
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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

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:41 vuln.today
CVE Published
May 10, 2025 - 05:15 nvd
HIGH 8.7

DescriptionCVE.org

A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunualUpdate of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. 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 T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunualUpdate of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Affected products include: Totolink A3000Ru Firmware, Totolink A810R Firmware, Totolink T10 Firmware, Totolink A3100R Firmware, Totolink A950Rg Firmware.

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.

CVE-2025-28037 CRITICAL POC
9.8 Apr 22

TOTOLINK A810R V4.1.2cu.5182_B20201026 and A950RG V4.1.2cu.5161_B20200903 were found to contain a pre-auth remote comman

CVE-2025-28036 CRITICAL POC
9.8 Apr 22

TOTOLINK A950RG V4.1.2cu.5161_B20200903 was found to contain a pre-auth remote command execution vulnerability in the se

CVE-2025-28035 CRITICAL POC
9.8 Apr 22

TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability in the set

CVE-2025-28034 CRITICAL POC
9.8 Apr 22

TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.51

CVE-2025-45800 CRITICAL POC
9.8 May 02

TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a command execution vulnerability in the setDeviceName interface of the

CVE-2025-45798 CRITICAL POC
9.8 May 08

A command execution vulnerability exists in the TOTOLINK A950RG V4.1.2cu.5204_B20210112. Rated critical severity (CVSS 9

CVE-2025-67186 CRITICAL POC
9.8 Feb 03

TOTOLINK A950RG router firmware has a buffer overflow in setUrlFilterRules that allows remote attackers to execute code

CVE-2025-67188 CRITICAL POC
9.8 Feb 03

TOTOLINK A950RG has a third buffer overflow in setRadvdCfg providing yet another RCE vector through the router's IPv6 co

CVE-2025-45797 CRITICAL POC
9.8 May 08

TOTOlink A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability. Rated critical severity (CVSS 9.8), th

CVE-2025-67187 CRITICAL POC
9.8 Feb 03

TOTOLINK A950RG has a stack-based buffer overflow in a second endpoint, providing an additional RCE vector through the r

CVE-2022-26214 CRITICAL POC
9.8 Mar 15

Totolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R V4.1.2cu.5137

CVE-2022-26212 CRITICAL POC
9.8 Mar 15

Totolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R V4.1.2cu.5137

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CVE-2025-4496 vulnerability details – vuln.today

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