VDB-255305 · CVE-2024-27661 · GCVE-0-2024-27661

D-Link DIR-823G 1.0.2B05 sub_4484A8 null pointer dereference

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.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in D-Link DIR-823G 1.0.2B05. The affected element is the function sub_4484A8. The manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2024-27661. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in D-Link DIR-823G 1.0.2B05 (Router Operating System). This issue affects the function sub_4484A8. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

D-Link DIR-823G A1V1.0.2B05 was discovered to contain Null-pointer dereferences in sub_4484A8(). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

The weakness was published 02/29/2024. The advisory is shared at calm-healer-839.notion.site. The identification of this vulnerability is CVE-2024-27661 since 02/26/2024. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/17/2025).

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Router Operating System

Vendor

D-Link

Name

DIR-823G

Version

1.0.2B05

License

commercial

Website

Vendor: https://www.dlink.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

02/26/2024 🔍
02/29/2024 +3 days 🔍
02/29/2024 +0 days 🔍
03/17/2025 +382 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: calm-healer-839.notion.site
Status: Not defined

CVE: CVE-2024-27661 (🔍)
GCVE (CVE): GCVE-0-2024-27661
GCVE (VulDB): GCVE-100-255305

Entryinfo

Created: 02/29/2024 20:52
Updated: 03/17/2025 18:28
Changes: 02/29/2024 20:52 (39), 03/17/2025 18:28 (27)
Complete: 🔍
Cache ID: 216::103