Multiple unspecified vulnerabilities in (1) unlzh.c and (2) unpack.c in the gzip…
Priority MEDIUM 64Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.24492 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:subsystem_for_unix-based_applications:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:windows_services_for_unix:3.0:-:std:*:*:*:*:* | 3.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:windows_services_for_unix:3.5:*:*:*:*:*:*:* | 3.5 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:*:*:enterprise:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:*:*:ultimate:*:*:*:*:* | all versions | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:subsystem_for_unix-based_applications:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:windows_services_for_unix:3.0:-:std:*:*:*:*:* Versions 3.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:windows_services_for_unix:3.5:*:*:*:*:*:*:* Versions 3.5 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:*:*:enterprise:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:*:*:ultimate:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-1216
- 2026-10-03 Alias added: GHSA-857c-xvrg-r737
References
Advisory 2
Sources
- CVE-2009-1216 · CVE Program
- CVE-2009-1216 · NVD
- FIRST EPSS
- GHSA-857c-xvrg-r737 · GitHub Advisory Database · CC BY 4.0
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