What is CVE-2023-25281?

CVE-2023-25281 is a high-severity vulnerability in Dlink Dir-820l, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-03-16.

How severe is CVE-2023-25281?

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

Buffer overflow in Dlink Dir-820l

CVE-2023-25281

A stack overflow vulnerability exists in pingV4Msg component in D-Link DIR820LA1_FW105B03, allows attackers to cause a denial of service via the nextPage parameter to ping.ccp.

Vulnerability class: Buffer Overflow

Published 2023-03-16 · 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: 0.011 (63.6th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Dlink Dir-820l — versions a1
Dlink Dir-820l Firmware — versions 1.05b03

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.dlink.com/en/security-bulletin/ (Vendor Advisory)
github.com/migraine-sudo/D_Link_Vuln/tree/main/stackoverflow cancelPing (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-25281?: CVE-2023-25281 is a high-severity vulnerability in Dlink Dir-820l, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-03-16.
How severe is CVE-2023-25281?: High severity. CVSS v3 base score is 7.5 out of 10.