CVE-2022-42999
Published: 26 October 2022
Summary
CVE-2022-42999 is a high-severity OS Command Injection (CWE-78) vulnerability in Dlink Dir-816 Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 6.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
D-Link DIR-816 A2 firmware version 1.10 B05 contains multiple OS command injection flaws (CWE-78) at the /goform/setSysAdm endpoint, where the admuser and admpass parameters are processed without adequate sanitization. The device is reachable over the network and the issues carry a CVSS 3.1 score of 7.5.
An unauthenticated attacker can supply crafted values to these parameters and execute arbitrary commands on the router. Because the CVSS vector shows no impact on confidentiality or integrity, successful exploitation is expected to produce high availability impact, most likely resulting in denial-of-service conditions or device instability.
D-Link has published a security bulletin addressing the affected hardware, while public proof-of-concept material is available in a GitHub repository that reproduces the injection vectors. The associated EPSS score has remained flat at 0.1198 since disclosure, indicating no material increase in observed exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-46048
Vulnerability details
D-Link DIR-816 A2 1.10 B05 was discovered to contain multiple command injection vulnerabilities via the admuser and admpass parameters at /goform/setSysAdm.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.