VDB-301692 · CVE-2025-28138 · EUVD-2025-8646

TOTOLINK A800R 4.1.2cu.5137_B20200730 setNoticeCfg NoticeUrl privilege escalation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in TOTOLINK A800R 4.1.2cu.5137_B20200730. It has been declared as critical. The affected element is the function setNoticeCfg. The manipulation of the argument NoticeUrl results in Remote Privilege Escalation. This vulnerability is reported as CVE-2025-28138. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setNoticeCfg. The manipulation of the argument NoticeUrl with an unknown input leads to a remote privilege escalation vulnerability. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

TOTOLINK A800R V4.1.2cu.5137_B20200730 contains a remote command execution vulnerability in the setNoticeCfg function through the NoticeUrl parameter.

The advisory is shared for download at sudsy-eyeliner-a59.notion.site. This vulnerability is traded as CVE-2025-28138 since 03/11/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-8646). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

TOTOLINK

Name

A800R

Version

4.1.2cu.5137_B20200730

License

commercial

Website

Vendor: https://www.totolink.net/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/11/2025 🔍
03/27/2025 +16 days 🔍
03/27/2025 +0 days 🔍
06/08/2025 +73 days 🔍

Sourcesinfo

Vendor: totolink.net

Advisory: sudsy-eyeliner-a59.notion.site
Status: Not defined

CVE: CVE-2025-28138 (🔍)
GCVE (CVE): GCVE-0-2025-28138
GCVE (VulDB): GCVE-100-301692
EUVD: 🔍

Entryinfo

Created: 03/27/2025 16:34
Updated: 06/08/2025 06:38
Changes: 03/27/2025 16:34 (52), 06/08/2025 06:38 (1)
Complete: 🔍
Cache ID: 216::103