ByteOS Network

NVD Vulnerability Details :

CVE-2025-67445

Modified

Source-cve@mitre.org

Published At-24 Feb, 2026 | 15:21

Updated At-27 Feb, 2026 | 19:16

TOTOLINK X5000R V9.1.0cu.2415_B20250515 contains a denial-of-service vulnerability in /cgi-bin/cstecgi.cgi. The CGI reads the CONTENT_LENGTH environment variable and allocates memory using malloc (CONTENT_LENGTH + 1) without sufficient bounds checking. When lighttpd s request size limit is not enforced, a crafted large POST request can cause memory exhaustion or a segmentation fault, leading to a crash of the management CGI and loss of availability of the web interface.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Secondary	3.1	6.5	MEDIUM	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Type: Primary

Version: 3.1

Base score: 7.5

Base severity: HIGH

Vector:

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

Type: Secondary

Version: 3.1

Base score: 6.5

Base severity: MEDIUM

Vector:

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

CPE Matches

TOTOLINK

>>x5000r_firmware>>9.1.0cu.2415_b20250515

cpe:2.3:o:totolink:x5000r_firmware:9.1.0cu.2415_b20250515:*:*:*:*:*:*:*

TOTOLINK

>>x5000r>>-

cpe:2.3:h:totolink:x5000r:-:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-400	Secondary	134c704f-9b21-4f2e-91b3-4a467353bcc0

CWE ID: CWE-400

Type: Secondary

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

References

Hyperlink	Source	Resource
http://totolink.com	cve@mitre.org	Product
https://github.com/DaRkSpOoOk/CVE-2025-67445	cve@mitre.org	Exploit Third Party Advisory

Hyperlink: http://totolink.com

Source: cve@mitre.org

Resource:

Product

Hyperlink: https://github.com/DaRkSpOoOk/CVE-2025-67445

Source: cve@mitre.org

Resource:

Exploit

Third Party Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History