D-Link DI-7100G 2020-02-21 Jhttpd Service sub_451754 viav4 buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical has been found in D-Link DI-7100G 2020-02-21. Affected by this issue is the function sub_451754 of the component Jhttpd Service. The manipulation of the argument viav4 leads to buffer overflow. This vulnerability is uniquely identified as CVE-2025-57637. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in D-Link DI-7100G 2020-02-21. This issue affects the function sub_451754 of the component Jhttpd Service. The manipulation of the argument viav4 with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow vulnerability in D-Link DI-7100G 2020-02-21 in the sub_451754 function of the jhttpd service in the viav4 parameter allowing attackers to cause a denial of service or execute arbitrary code.

It is possible to read the advisory at dlink.com. The identification of this vulnerability is CVE-2025-57637 since 08/17/2025. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/30/2025).

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 CERT Bund (WID-SEC-2025-2161). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • D-LINK Router

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/17/2025 CVE reserved
09/24/2025 +38 days Advisory disclosed
09/24/2025 +0 days VulDB entry created
09/30/2025 +6 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: dlink.com
Status: Not defined

CVE: CVE-2025-57637 (🔒)
GCVE (CVE): GCVE-0-2025-57637
GCVE (VulDB): GCVE-100-325667
CERT Bund: WID-SEC-2025-2161 - D-LINK Router: Mehrere Schwachstellen

Entryinfo

Created: 09/24/2025 07:53
Updated: 09/30/2025 23:16
Changes: 09/24/2025 07:53 (55), 09/30/2025 23:16 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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