Threats / TerraMaster / CVE-2022-24990
CVE-2022-24990
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
TerraMaster OS vulnerability
TerraMaster OS contains an unauthenticated remote command execution vulnerability allowing attackers to execute arbitrary commands on affected systems without credentials.
Verdict
Today item, not a backlog item.
An unauthenticated remote code execution flaw in TerraMaster OS enables direct command execution on target endpoints. The high EPSS score and active exploitation in ransomware campaigns indicate immediate risk to exposed systems.
CISA KEV Yes · 2023-02-103Ransomware use Flagged3EPSS 0.8405 (verify live)4Exploit Weaponized · public PoC5
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
487 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-02-10), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.8405 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: TerraMaster, TerraMaster OS. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-306 Missing Authentication — weakness family: Authentication.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify and probe TerraMaster OS instances exposed on the network without requiring authentication.
Business
Exposed NAS devices become discoverable attack surfaces, increasing organizational risk profile.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I send a crafted request to execute arbitrary system commands on the target device.
Business
Attackers gain code execution capability, enabling data theft, encryption, or lateral movement.
3
Lateral reach — past segmentation narrative 3
Attacker
I establish persistence and deploy ransomware or data exfiltration tools across the compromised storage system.
Business
Critical data stored on NAS becomes encrypted or stolen, disrupting operations and triggering incident response costs.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05