Home/CVE/D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the Encryption parameter in the SetWLanRadio
CVE

CVE-2023-44839

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the Encryption parameter in the SetWLanRadio

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.

HIGH · CVSS 7.5 EPSS 0.11168
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  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 6% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
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Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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Affected Products & Versions

1
dlink dir-823g firmwareall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · SetWLanRadioSecurity_Encryptiongithub.com
◈

Detection Rules (IDS/IPS)

2
et-openET WEB_SPECIFIC_APPS D-Link SetWLanRadioSettings Multiple XML Tags Buffer Overflow Attempt (CVE-2023-44839, CVE-2023-43241)web-application-attack
et-openET WEB_SPECIFIC_APPS D-Link SetWLanRadioSecurity Multiple XML Tags Buffer Overflow Attempt (CVE-2023-44839, CVE-2022-46569)web-application-attack
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
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Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Oct 2023 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.dlink.com/en/security-bulletin/Vendor Advisory
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