# Tcpdump.org Libpcap vulnerabilities

Source: https://junglewise.ai/threats/technologies/libpcap  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/libpcap.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 7 vulnerabilities in Tcpdump.org Libpcap: 0 in the last 7 days and 7 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-6554, was published on 5 September 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 7
- All time: 7 (0 critical, 0 exploited in the wild)

## About Tcpdump.org Libpcap

Library for capturing and processing network packets at the data link layer.

## Latest Tcpdump.org Libpcap vulnerabilities

- [CVE-2026-6554: libpcap BPF interpreter infinite loop in ja instruction](https://junglewise.ai/threats/cve-2026-6554-libpcap-bpf-interpreter-infinite-loop-in-ja-instruction) (medium, CVSS 5.5, published 5 Sep 2026)
- [CVE-2026-6244: libpcap BPF interpreter division by zero in ALU instructions](https://junglewise.ai/threats/cve-2026-6244-libpcap-bpf-interpreter-division-by-zero-in-alu-instructions) (medium, CVSS 5.5, published 5 Sep 2026)
- [CVE-2026-31912: libpcap BPF interpreter buffer bounds check bypass](https://junglewise.ai/threats/cve-2026-31912-libpcap-bpf-interpreter-buffer-bounds-check-bypass) (medium, CVSS 5.5, published 5 Sep 2026)
- [CVE-2026-31911: libpcap BPF interpreter abort on invalid opcode](https://junglewise.ai/threats/cve-2026-31911-libpcap-bpf-interpreter-abort-on-invalid-opcode) (medium, CVSS 5.5, published 5 Sep 2026)
- [CVE-2026-18313: libpcap rpcapd memory leak in daemon_unpackapplyfilter](https://junglewise.ai/threats/cve-2026-18313-libpcap-rpcapd-memory-leak-in-daemon-unpackapplyfilter) (medium, CVSS 4.3, published 5 Sep 2026)
- [CVE-2026-18238: libpcap RPCAP message validation buffer over-read](https://junglewise.ai/threats/cve-2026-18238-libpcap-rpcap-message-validation-buffer-over-read) (medium, CVSS 5, published 5 Sep 2026)
- [CVE-2026-0799: libpcap BPF interpreter scratch memory validation bypass](https://junglewise.ai/threats/cve-2026-0799-libpcap-bpf-interpreter-scratch-memory-validation-bypass) (high, CVSS 8.7, published 5 Sep 2026)

## Most severe Tcpdump.org Libpcap vulnerabilities

- [CVE-2026-0799: libpcap BPF interpreter scratch memory validation bypass](https://junglewise.ai/threats/cve-2026-0799-libpcap-bpf-interpreter-scratch-memory-validation-bypass) (high, CVSS 8.7, published 5 Sep 2026)
- [CVE-2026-6554: libpcap BPF interpreter infinite loop in ja instruction](https://junglewise.ai/threats/cve-2026-6554-libpcap-bpf-interpreter-infinite-loop-in-ja-instruction) (medium, CVSS 5.5, published 5 Sep 2026)
- [CVE-2026-6244: libpcap BPF interpreter division by zero in ALU instructions](https://junglewise.ai/threats/cve-2026-6244-libpcap-bpf-interpreter-division-by-zero-in-alu-instructions) (medium, CVSS 5.5, published 5 Sep 2026)
- [CVE-2026-31912: libpcap BPF interpreter buffer bounds check bypass](https://junglewise.ai/threats/cve-2026-31912-libpcap-bpf-interpreter-buffer-bounds-check-bypass) (medium, CVSS 5.5, published 5 Sep 2026)
- [CVE-2026-31911: libpcap BPF interpreter abort on invalid opcode](https://junglewise.ai/threats/cve-2026-31911-libpcap-bpf-interpreter-abort-on-invalid-opcode) (medium, CVSS 5.5, published 5 Sep 2026)
- [CVE-2026-18238: libpcap RPCAP message validation buffer over-read](https://junglewise.ai/threats/cve-2026-18238-libpcap-rpcap-message-validation-buffer-over-read) (medium, CVSS 5, published 5 Sep 2026)
- [CVE-2026-18313: libpcap rpcapd memory leak in daemon_unpackapplyfilter](https://junglewise.ai/threats/cve-2026-18313-libpcap-rpcapd-memory-leak-in-daemon-unpackapplyfilter) (medium, CVSS 4.3, published 5 Sep 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 7 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Tcpdump.org Libpcap vulnerabilities", https://junglewise.ai/threats/technologies/libpcap, 9 November 2026.