CVE-2022-26258
Published: September 8, 2022
Official Description
D-Link DIR-820L contains an unspecified vulnerability in Device Name parameter in /lan.asp which allows for remote code execution.
CISA KEV Advisory
D-Link DIR-820L Remote Code Execution Vulnerability
D-Link DIR-820L contains an unspecified vulnerability in Device Name parameter in /lan.asp which allows for remote code execution.
The impacted product is end-of-life and should be disconnected if still in use.
Risk Analysis
D-Link DIR-820L contains an unspecified vulnerability in the Device Name parameter in /lan.asp that allows for remote code execution. The very high EPSS score of 0.87162 indicates a strong likelihood of exploitation, and its inclusion in CISA's KEV confirms active exploitation, making this a critical vulnerability for affected devices.
This vulnerability is actively being exploited in the wild. The nature of the flaw in a web parameter indicates it is remotely exploitable.
Users of D-Link DIR-820L should apply all available firmware updates. Restrict network access to the device's administrative interface and ensure strong, unique passwords are used.
Technical Analysis
CVE-2022-26258 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-26258 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-26258 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1