D-Link DIR-816 A2 1.10CNB0 form2Dhcpip.cgi nvmacaddr stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$5k-$25k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in D-Link DIR-816 A2 1.10CNB0. The affected element is an unknown function of the file form2Dhcpip.cgi. Executing a manipulation of the argument nvmacaddr can lead to stack-based overflow. This vulnerability is handled as CVE-2023-43238. There is not any exploit available.

Detailsinfo

A vulnerability was found in D-Link DIR-816 A2 1.10CNB0 (Router Operating System). It has been declared as critical. This vulnerability affects an unknown functionality of the file form2Dhcpip.cgi. The manipulation of the argument nvmacaddr 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. CVE summarizes:

D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter nvmacaddr in form2Dhcpip.cgi.

The weakness was released 09/21/2023. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-43238 since 09/18/2023. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 02/04/2026).

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-2023-47657). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 8.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / 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

09/18/2023 🔍
09/21/2023 +3 days 🔍
09/21/2023 +0 days 🔍
02/04/2026 +867 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2023-43238 (🔍)
GCVE (CVE): GCVE-0-2023-43238
GCVE (VulDB): GCVE-100-240136
EUVD: 🔍

Entryinfo

Created: 09/21/2023 17:03
Updated: 02/04/2026 11:55
Changes: 09/21/2023 17:03 (40), 10/14/2023 09:29 (11), 09/25/2024 05:43 (27), 02/04/2026 11:55 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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