CVE-2022-28927
Published: 19 May 2022
Summary
CVE-2022-28927 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Subconverter Project Subconverter. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 11.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-28927 is a remote code execution vulnerability affecting Subconverter version 0.7.2. The flaw, assigned CWE-434, permits arbitrary code execution through specially crafted config and url parameters and carries a CVSS 3.1 base score of 9.8 reflecting network-accessible, unauthenticated attack vectors with high impact on confidentiality, integrity, and availability.
An unauthenticated attacker can supply malicious parameters to a Subconverter instance reachable over the network, resulting in execution of attacker-controlled code on the target system without any user interaction.
The referenced GitHub commit ce8d2bd0f13f05fcbd2ed90755d097f402393dd3 implements the corrective changes in the upstream repository. The associated EPSS score rose from lower values after disclosure to a peak of 0.0638 on 2025-12-11 before receding to the current 0.0416, indicating a later increase in observed exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-33361
Vulnerability details
A remote code execution (RCE) vulnerability in Subconverter v0.7.2 allows attackers to execute arbitrary code via crafted config and url parameters.
- 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.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.