SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2022-24990

TerraMaster OS Remote Command Execution Vulnerability

KEVHIGH 7.5EPSS 83.2%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 March 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

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
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
83.17% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 10 February 2023 · due 3 March 2023 · used in ransomware campaigns
Weakness
CWE-306
Affected
terra-master/terramaster operating system
Source
cve@mitre.org
EPSS trend
0%43%85%30 October 2026: 83.17%30 October 202630 October 2026

EPSS 83.2% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://forum.terra-master.com/en/viewtopic.php?t=3030; https://nvd.nist.gov/vuln/detail/CVE-2022-24990

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.