VDB-321150 · CVE-2025-55621 · GCVE-0-2025-55621

Reolink Web and Mobile App Services 4.54.0.4.20250526 authorization

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.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Reolink Web and Mobile App Services 4.54.0.4.20250526 and classified as critical. Impacted is an unknown function. The manipulation results in authorization. This vulnerability is known as CVE-2025-55621. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Reolink Web and Mobile App Services 4.54.0.4.20250526. Affected is an unknown code. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. This is going to have an impact on confidentiality. CVE summarizes:

An Insecure Direct Object Reference (IDOR) vulnerability in Reolink v4.54.0.4.20250526 allows unauthorized attackers to access and download other users' profile photos via a crafted URL.

The advisory is available at relieved-knuckle-264.notion.site. This vulnerability is traded as CVE-2025-55621 since 08/13/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/28/2025).

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

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Productinfo

Vendor

Reolink

Name

Web and Mobile App Services

Version

4.54.0.4.20250526

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
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

08/13/2025 CVE reserved
08/22/2025 +9 days Advisory disclosed
08/22/2025 +0 days VulDB entry created
08/28/2025 +6 days VulDB entry last update

Sourcesinfo

Advisory: relieved-knuckle-264.notion.site
Status: Not defined

CVE: CVE-2025-55621 (🔒)
GCVE (CVE): GCVE-0-2025-55621
GCVE (VulDB): GCVE-100-321150

Entryinfo

Created: 08/22/2025 23:51
Updated: 08/28/2025 16:25
Changes: 08/22/2025 23:51 (52), 08/28/2025 16:25 (1)
Complete: 🔍
Cache ID: 216::103