CVE-2022-25076
Published: 24 February 2022
Summary
CVE-2022-25076 is a critical-severity OS Command Injection (CWE-78) vulnerability in Totolink A800R Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 9.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
TOTOLink A800R firmware version V4.1.2cu.5137_B20200730 contains a command injection vulnerability in the Main function. Tracked as CVE-2022-25076 and assigned CWE-78, the flaw allows arbitrary command execution through the QUERY_STRING parameter and received a CVSS 3.1 score of 9.8 reflecting network-accessible attack conditions without authentication or user interaction.
An unauthenticated remote attacker can supply a crafted QUERY_STRING value to the affected router and achieve arbitrary command execution on the underlying operating system, enabling full device compromise including configuration changes, traffic interception, or persistence.
Public proof-of-concept code demonstrating the injection has been posted to GitHub, but the supplied references contain no vendor advisory, patch information, or mitigation guidance. The associated EPSS score has remained flat at 0.0566 with no material rise since publication.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-29820
Vulnerability details
TOTOLink A800R V4.1.2cu.5137_B20200730 was discovered to contain a command injection vulnerability in the "Main" function. This vulnerability allows attackers to execute arbitrary commands via the QUERY_STRING parameter.
- 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.