CVE-2022-24990
KEVRansomware UseTerraMaster OS Remote Command Execution Vulnerability
Description
TerraMaster OS contains a remote command execution vulnerability that allows an unauthenticated user to execute commands on the target endpoint.
TerraMaster NAS 4.2.29 and earlier allows remote attackers to discover the administrative password by sending "User-Agent: TNAS" to module/api.php?mobile/webNasIPS and then reading the PWD field in the response.
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NPublishedFeb 7, 2023
Last modifiedJun 17, 2026
Added to KEVFeb 10, 2023
Remediation dueMar 3, 2023
References
- packetstormsecurity.com/files/172904/TerraMaster-TOS-4.2.29-Remote-Code-Execution.htmlExploitThird Party Advisory
- forum.terra-master.com/en/viewforum.php?f=28Issue TrackingRelease Notes
- github.com/0xf4n9x/CVE-2022-24990ExploitThird Party Advisory
- octagon.net/blog/2022/03/07/cve-2022-24990-terrmaster-tos-unauthenticated-remote-command-execution-via-php-object-instantiation/ExploitThird Party Advisory
- broadcom.com/support/security-center/attacksignatures/detail?asid=33732Third Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24990US Government Resource
0 recent articles mention this CVE
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Risk assessment · Critical
Actively exploited and used by ransomware crews. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1334 days
- Ransomware
- Used in known ransomware campaigns
- CVSS
- 7.5 HIGH
- EPSS (30-day exploit probability)
- 83.2% · top 1% of all CVEs
- Weakness
- CWE-306
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
- 5.Verify offline/immutable backups and segment the affected systems. This flaw is used for ransomware initial access.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.