PT-2022-7030 · D Link · D-Link Dir820La1

Published 2022-08-03 · Updated 2025-11-03 · CVE-2022-34973

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions D-Link DIR820LA1 versions prior to FW106B02

Description The issue is caused by a buffer overflow on the stack in the ping.ccp component of the D-Link DIR820LA1 router's firmware. This can be exploited by a remote attacker to cause a denial of service. The buffer overflow occurs via the nextPage parameter at ping.ccp.

Recommendations For D-Link DIR820LA1 version prior to FW106B02, update the firmware to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the ping.ccp component to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2023-07189

CVE-2022-34973

Affected Products

D-Link Dir820La1

References · 7

• 🔥 https://github.com/1759134370/iot/blob/main/DIR-820L.md · Exploit
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-34973 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-07189 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-34973 · Security Note
• https://t.me/cveNotify/141397 · Telegram Post
• https://t.me/cibsecurity/47494 · Telegram Post