OpenBSD 3.4 and NetBSD 1.6 and 1.6.1 allow remote attackers to cause a denial of service…
Priority LOW 28Published · 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
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
OpenBSD 3.4 and NetBSD 1.6 and 1.6.1 allow remote attackers to cause a denial of service (crash) by sending an IPv6 packet with a small MTU to a listening port and then issuing a TCP connect to that port.
Why it matters now
EPSS 0.02473 84th 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:o:netbsd:netbsd:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | NetBSD |
| cpe:2.3:o:netbsd:netbsd:1.6.1:*:*:*:*:*:*:* | 1.6.1 | Vulnerable | NetBSD |
| cpe:2.3:o:openbsd:openbsd:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:3.1:*:*:*:*:*:*:* | 3.1 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:3.2:*:*:*:*:*:*:* | 3.2 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:* | 3.3 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:* | 3.4 | Vulnerable | OpenBSD |
- cpe:2.3:o:netbsd:netbsd:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·NetBSD
- cpe:2.3:o:netbsd:netbsd:1.6.1:*:*:*:*:*:*:* Versions 1.6.1 Vulnerable ·NetBSD
- cpe:2.3:o:openbsd:openbsd:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:* Versions 3.4 Vulnerable ·OpenBSD
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-0257
- 2026-10-03 Alias added: GHSA-vqm2-c8wp-mmg7
References
Sources
- CVE-2004-0257 · CVE Program
- CVE-2004-0257 · NVD
- FIRST EPSS
- GHSA-vqm2-c8wp-mmg7 · GitHub Advisory Database · CC BY 4.0
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