CVE-2023-44839 — Classic Buffer Overflow in Dlink Dir-823g Firmware

CWE-120 — Classic Buffer Overflow5 documents4 sources
Severity
7.5HIGHNVD
EPSS
14.7%
top 5.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Dlink Dir-823g Firmware
Timeline
PublishedOct 5
Latest updateOct 10

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages1 packages

🔴Vulnerability Details

2
GHSA
GHSA-qccj-536p-x9c6: D-Link DIR-823G A1V1↗2023-10-05
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CVEList
CVE-2023-44839: D-Link DIR-823G A1V1↗2023-10-05
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🔍Detection Rules

2
Suricata
ET WEB_SPECIFIC_APPS D-Link SetWLanRadioSecurity Multiple XML Tags Buffer Overflow Attempt (CVE-2023-44839, CVE-2022-46569)↗2025-10-10
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Suricata
ET WEB_SPECIFIC_APPS D-Link SetWLanRadioSettings Multiple XML Tags Buffer Overflow Attempt (CVE-2023-44839, CVE-2023-43241)↗2025-10-10
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CVE-2023-44839 — Classic Buffer Overflow in Dlink | cvebase