HIGH SEVERITY

CVE-2009-1216

Subsystem For Unix Based Applications vulnerability

CVSS
10.0
EPSS
24.5%
EPSS pct
98th
Exploited
No known
Multiple unspecified vulnerabilities in (1) unlzh.c and (2) unpack.c in the gzip libraries in Microsoft Windows Server 2008, Windows Services for UNIX 3.0 and 3.5, and the Subsystem for UNIX-based Applications (SUA); as used in gunzip, gzip, pack, pcat, and unpack 7.x before 7.0.1701.48, 8.x before 8.0.1969.62, and 9.x before 9.0.3790.2076; allow remote attackers to execute arbitrary code via unknown vectors.
Affected vendor
Microsoft
Affected product
Subsystem For Unix Based Applications
CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Published
2009-04-01

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 24.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2009-1216

  • Confirm whether Microsoft Subsystem For Unix Based Applications is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-1216.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-1216

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