Description
D-Link DIR-823G A1 v1.0.2B05 was discovered to contain a buffer overflow in the FillMacCloneMac parameter in the /EXCU_SHELL endpoint. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
References (2)
Core 2
Core References
Exploit, Third Party Advisory
https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/DIR823G/FillMacCloneMac/FillMacCloneMac.md
Vendor Advisory
https://www.dlink.com/en/security-bulletin/
Scores
CVSS v3
7.5
EPSS
0.0007
EPSS Percentile
21.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-121
Status
published
Products (1)
dlink/dir-823g_firmware
1.0.2b05
Published
Oct 22, 2025
Tracked Since
Feb 18, 2026