D-Link DIR-823G 1.0.2B05 SetWLanRadioSecurity Encryption buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$5k-$25k0.00

Summaryinfo

A vulnerability identified as critical has been detected in D-Link DIR-823G 1.0.2B05. This affects the function SetWLanRadioSecurity. The manipulation of the argument Encryption leads to buffer overflow. This vulnerability is uniquely identified as CVE-2023-44839. No exploit exists.

Detailsinfo

A vulnerability was found in D-Link DIR-823G 1.0.2B05 (Router Operating System). It has been rated as critical. This issue affects the function SetWLanRadioSecurity. The manipulation of the argument Encryption 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 availability. The summary by CVE is:

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the Encryption parameter in the SetWLanRadioSecurity function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

The weakness was disclosed 10/05/2023. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-44839 since 10/02/2023. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/09/2026).

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-2023-49162). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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

10/02/2023 🔍
10/05/2023 +3 days 🔍
10/05/2023 +0 days 🔍
02/09/2026 +858 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2023-44839 (🔍)
GCVE (CVE): GCVE-0-2023-44839
GCVE (VulDB): GCVE-100-241397
EUVD: 🔍

Entryinfo

Created: 10/05/2023 22:39
Updated: 02/09/2026 13:36
Changes: 10/05/2023 22:39 (40), 10/27/2023 08:36 (11), 02/09/2026 13:36 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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