CVE-2019-20500
Published: June 29, 2023
Official Description
D-Link DWL-2600AP access point contains an authenticated command injection vulnerability via the Save Configuration functionality in the Web interface, using shell metacharacters in the admin.cgi?action=config_save configBackup or downloadServerip parameter.
CISA KEV Advisory
D-Link DWL-2600AP Access Point Command Injection Vulnerability
D-Link DWL-2600AP access point contains an authenticated command injection vulnerability via the Save Configuration functionality in the Web interface, using shell metacharacters in the admin.cgi?action=config_save configBackup or downloadServerip parameter.
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
Risk Analysis
This vulnerability in D-Link DWL-2600AP access points allows an authenticated attacker to inject commands through the web interface's configuration save function. The high EPSS score of 0.92221 and its presence in CISA's KEV catalog indicate a very high likelihood of exploitation and make this an urgent concern.
Active exploitation of this vulnerability has been observed in the wild, and it is listed in CISA's Known Exploited Vulnerabilities catalog. The flaw is remotely exploitable once an attacker has authenticated.
Administrators should apply available patches or firmware updates for D-Link DWL-2600AP access points. Restrict access to the administrative interface to trusted networks and users.
Technical Analysis
CVE-2019-20500 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-2019-20500 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-2019-20500 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