Buffer overflow in the Network Block Device (nbd) server 2.7.5 and earlier, and 2.8.0…
Priority MEDIUM 42CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Buffer overflow in the Network Block Device (nbd) server 2.7.5 and earlier, and 2.8.0 through 2.8.2, allows remote attackers to execute arbitrary code via a large request, which is written past the end of the buffer because nbd does not account for memory taken by the reply header.
Why it matters now
EPSS 0.05988 93rd 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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wouter_verhelst:nbd:*:*:*:*:*:*:*:* | up to 2.7.5 | Vulnerable | Wouter Verhelst |
| cpe:2.3:a:wouter_verhelst:nbd:2.8.0:*:*:*:*:*:*:* | 2.8.0 | Vulnerable | Wouter Verhelst |
| cpe:2.3:a:wouter_verhelst:nbd:2.8.2:*:*:*:*:*:*:* | 2.8.2 | Vulnerable | Wouter Verhelst |
- cpe:2.3:a:wouter_verhelst:nbd:*:*:*:*:*:*:*:* Versions up to 2.7.5 Vulnerable ·Wouter Verhelst
- cpe:2.3:a:wouter_verhelst:nbd:2.8.0:*:*:*:*:*:*:* Versions 2.8.0 Vulnerable ·Wouter Verhelst
- cpe:2.3:a:wouter_verhelst:nbd:2.8.2:*:*:*:*:*:*:* Versions 2.8.2 Vulnerable ·Wouter Verhelst
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-3534
- 2026-10-03 Alias added: GHSA-96w8-f5p6-mqmw
References
Patch 5
Advisory 1
More Wouter Verhelst Nbd vulnerabilities
- TI-2011-00457 Buffer overflow in the mainloop function in nbd-server.c in the server in Network Block… CVSS 2.0HIGH 7.5
- TI-2015-00788 nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle… CVSS 2.0HIGH 7.8
- TI-2013-06093 The modern style negotiation in Network Block Device (nbd-server) 2.9.22 through 3.3… CVSS 2.0HIGH 7.8
- TI-2013-05364 nbd-server in Network Block Device (nbd) before 3.5 does not properly check IP addresses… CVSS 2.0HIGH 7.5
- TI-2011-01697 nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2005-3534 · CVE Program
- CVE-2005-3534 · NVD
- FIRST EPSS
- GHSA-96w8-f5p6-mqmw · GitHub Advisory Database · CC BY 4.0
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