What is CVE-2023-44834?

CVE-2023-44834 is a high-severity vulnerability in Dlink Dir-823g, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2023-10-05.

How severe is CVE-2023-44834?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Dlink Dir-823g

CVE-2023-44834

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the StartTime parameter in the SetParentsControlInfo function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Vulnerability class: Buffer Overflow

Published 2023-10-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Dlink Dir-823g — versions a1
Dlink Dir-823g Firmware — versions 1.0.2b05

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

www.dlink.com/en/security-bulletin/ (Vendor Advisory)
github.com/bugfinder0/public_bug/tree/main/dlink/dir823g/SetParentsControlInfo_… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-44834?: CVE-2023-44834 is a high-severity vulnerability in Dlink Dir-823g, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2023-10-05.
How severe is CVE-2023-44834?: High severity. CVSS v3 base score is 7.5 out of 10.