VDB-311686 · CVE-2025-5912 · EUVD-2025-17618

D-Link DIR-632 FW103B08 HTTP POST Request do_file stack-based overflow

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.
8.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in D-Link DIR-632 FW103B08. It has been rated as critical. This issue affects the function do_file of the component HTTP POST Request Handler. The manipulation leads to stack-based overflow. This vulnerability only affects products that are no longer supported by the maintainer. The identification of this vulnerability is CVE-2025-5912. The attack may be initiated remotely. Furthermore, there is an exploit available. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability was found in D-Link DIR-632 FW103B08. It has been declared as critical. This vulnerability affects the function do_file of the component HTTP POST Request Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability was named CVE-2025-5912. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/16/2025).

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

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-2025-17618). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

D-Link

Name

DIR-632

Version

FW103B08

License

commercial

Support

end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector: 🔒

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: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

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

06/09/2025 Advisory disclosed
06/09/2025 +0 days VulDB entry created
06/16/2025 +7 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2025-5912 (🔒)
GCVE (CVE): GCVE-0-2025-5912
GCVE (VulDB): GCVE-100-311686
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/09/2025 10:12 AM
Updated: 06/16/2025 07:03 PM
Changes: 06/09/2025 10:12 AM (57), 06/10/2025 06:52 AM (1), 06/10/2025 01:17 PM (31), 06/16/2025 07:03 PM (1)
Complete: 🔍
Submitter: xiaobor123
Cache ID: 18:9E0:40

Submitinfo

Accepted

Submit #592307: dlink DIR-632 FW103B08 Stack-based buffer overflow (by xiaobor123)