CVE-2022-26993
Published: 15 March 2022
Summary
CVE-2022-26993 is a critical-severity OS Command Injection (CWE-78) vulnerability in Arris Sbr-Ac1900P Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 7.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05, and SBR-AC1200P 1.0.5-B05 contain a command-injection vulnerability (CWE-78) in the pppoe function. The flaw is reachable through the pppoeUserName, pppoePassword, and pppoe_Service parameters and permits execution of arbitrary operating-system commands when a crafted request is processed.
An unauthenticated attacker with network access can submit a malicious request to the affected device and obtain full control, resulting in impacts to confidentiality, integrity, and availability. The vulnerability received a CVSS v3.1 base score of 9.8.
Public details of the issue were disclosed in a GitHub repository that includes proof-of-concept material; no vendor advisory or firmware patch information is referenced in the available sources. The associated EPSS score has remained flat at 0.0956 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-31533
Vulnerability details
Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05 and SBR-AC1200P 1.0.5-B05 were discovered to contain a command injection vulnerability in the pppoe function via the pppoeUserName, pppoePassword, and pppoe_Service parameters. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
- 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.