VDB-242219 · CVE-2023-45578 · EUVD-2023-49870

D-Link DI-7400G+V2.D1 up to 23.08.23D pap_en/chap_en buffer 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.
7.9	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in D-Link DI-7003GV2.D1, DI-7100G+V2.D1, DI-7100GV2.D1, DI-7200G+V2.D1, DI-7200GV2.E1, DI-7300G+V2.D1 and DI-7400G+V2.D1 up to 23.08.23D. It has been classified as critical. Affected is an unknown function of the file pap_en/chap_en. The manipulation of the argument chap_en leads to buffer overflow. This vulnerability is traded as CVE-2023-45578. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in D-Link DI-7003GV2.D1, DI-7100G+V2.D1, DI-7100GV2.D1, DI-7200G+V2.D1, DI-7200GV2.E1, DI-7300G+V2.D1 and DI-7400G+V2.D1 up to 23.08.23D. This issue affects an unknown code block of the file pap_en/chap_en. The manipulation of the argument chap_en 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 DI-7003GV2.D1 v.23.08.25D1 and before, DI-7100G+V2.D1 v.23.08.23D1 and before, DI-7100GV2.D1 v.23.08.23D1, DI-7200G+V2.D1 v.23.08.23D1 and before, DI-7200GV2.E1 v.23.08.23E1 and before, DI-7300G+V2.D1 v.23.08.23D1, and DI-7400G+V2.D1 v.23.08.23D1 and before allows a remote attacker to execute arbitrary code via the pap_en/chap_en parameter of the pppoe_base.asp function.

The weakness was shared 10/16/2023. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2023-45578 since 10/09/2023. 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 02/11/2026).

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-2023-49870). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

D-Link

Name

Version

23.08.23D

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

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

10/09/2023 🔍
10/16/2023 +7 days 🔍
10/16/2023 +0 days 🔍
02/11/2026 +849 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2023-45578 (🔍)
GCVE (CVE): GCVE-0-2023-45578
GCVE (VulDB): GCVE-100-242219
EUVD: 🔍

Entryinfo

Created: 10/16/2023 11:44
Updated: 02/11/2026 17:41
Changes: 10/16/2023 11:44 (37), 10/16/2023 11:48 (2), 11/02/2023 18:11 (11), 02/11/2026 17:41 (16)
Complete: 🔍
Cache ID: 216::103

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