The pf_test_rule function in OpenBSD Packet Filter (PF), as used in OpenBSD 4.2 through…
Priority MEDIUM 46CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
The pf_test_rule function in OpenBSD Packet Filter (PF), as used in OpenBSD 4.2 through 4.5, NetBSD 5.0 before RC3, MirOS 10 and earlier, and MidnightBSD 0.3-current allows remote attackers to cause a denial of service (panic) via crafted IP packets that trigger a NULL pointer dereference during translation, related to an IPv4 packet with an ICMPv6 payload.
Why it matters now
EPSS 0.09523 95th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA
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:midnightbsd:midnightbsd:0.3-current:*:*:*:*:*:*:* | 0.3-current | Vulnerable | MidnightBSD |
| cpe:2.3:o:mirbsd:miros:*:*:*:*:*:*:*:* | up to 10 | Vulnerable | Mirbsd |
| cpe:2.3:o:netbsd:netbsd:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | NetBSD |
| cpe:2.3:o:openbsd:openbsd:4.2:*:*:*:*:*:*:* | 4.2 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:4.3:*:*:*:*:*:*:* | 4.3 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:4.4:*:*:*:*:*:*:* | 4.4 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:4.5:*:*:*:*:*:*:* | 4.5 | Vulnerable | OpenBSD |
- cpe:2.3:o:midnightbsd:midnightbsd:0.3-current:*:*:*:*:*:*:* Versions 0.3-current Vulnerable ·MidnightBSD
- cpe:2.3:o:mirbsd:miros:*:*:*:*:*:*:*:* Versions up to 10 Vulnerable ·Mirbsd
- cpe:2.3:o:netbsd:netbsd:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·NetBSD
- cpe:2.3:o:openbsd:openbsd:4.2:*:*:*:*:*:*:* Versions 4.2 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:4.3:*:*:*:*:*:*:* Versions 4.3 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:4.4:*:*:*:*:*:*:* Versions 4.4 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:4.5:*:*:*:*:*:*:* Versions 4.5 Vulnerable ·OpenBSD
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-0687
- 2026-10-03 Alias added: GHSA-r7qv-r86r-qrqf
References
Sources
- CVE-2009-0687 · CVE Program
- CVE-2009-0687 · NVD
- FIRST EPSS
- GHSA-r7qv-r86r-qrqf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences