HOMEVULNERABILITIESCVE-2023-43201
CRITICAL

CVE-2023-43201

CWE-787Published: September 20, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a stack overflow via the hi_up parameter in the qos_ext.asp function.

NVD Source

Risk Analysis

This vulnerability is a stack overflow in the D-Link DI-7200GV2.E1 firmware, triggered via the QoS configuration interface. It is remotely exploitable without authentication, leading to a critical CVSS score of 9.8.

No public exploit is known for this vulnerability, and it is not currently in the KEV database.

Recommended Action

Apply the latest firmware updates provided by D-Link for the DI-7200G series.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-43201 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

dlink2 product(s)
di-7200g firmwaredi-7200g
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/Archerber/bug_submit/blob/main/D-Link/DI-7200GV2/bug2.md
ADVISORYhttps://www.dlink.com/en/security-bulletin/
ADVISORYhttps://github.com/Archerber/bug_submit/blob/main/D-Link/DI-7200GV2/bug2.md
ADVISORYhttps://www.dlink.com/en/security-bulletin/

All References (4)

→
https://github.com/Archerber/bug_submit/blob/main/D-Link/DI-7200GV2/bug2.mdExploit · Third Party Advisory
→
https://www.dlink.com/en/security-bulletin/Vendor Advisory
→
https://github.com/Archerber/bug_submit/blob/main/D-Link/DI-7200GV2/bug2.mdExploit · Third Party Advisory
→
https://www.dlink.com/en/security-bulletin/Vendor Advisory

Quick Facts

CVE IDCVE-2023-43201
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedSep 20, 2023

Related CVEs (CWE-787)

CVE-2002-2227
10.0
CVE-2011-1807
10.0
CVE-2015-0235
10.0
CVE-2004-0574
10.0
CVE-2022-30292
10.0
CVE-2018-2913
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-43201 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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