ETK-2026-3449Zero's internal tracking ID, independent of the CVE number.
waiting for further signalsZero needs more public information before it can validate it.description
gopacket decoders can mishandle malformed OSPF, LLDP, TCP, and transport-header data, causing process termination or excessive memory use. An attacker must be able to provide network traffic to a capture or decoding workflow, or provide a capture file for processing.
mitigation
Upgrade github.com/gopacket/gopacket to version 1.7.5 or later. Until upgraded, reject untrusted capture input and avoid invoking packet or endpoint string formatting on packets with decoding errors.
fixed in 1.7.5
outcome
No artifact: an exploit or check was attempted but could not be produced at this moment.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-11-04 04:08Zghsa: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/ETK-2026-3449
{ "etk_id": "ETK-2026-3449", "cve_id": null, "display_id": "ETK-2026-3449", "ghsa_id": "GHSA-5jhc-7qgc-hmgp", "euvd_id": null, "status": "published", "anchor_state": "awaiting_cve", "title": "Malformed packet denial of service in gopacket decoders", "summary": "gopacket decoders can mishandle malformed OSPF, LLDP, TCP, and transport-header data, causing process termination or excessive memory use. An attacker must be able to provide network traffic to a capture or decoding workflow, or provide a capture file for processing.", "mitigation": "Upgrade github.com/gopacket/gopacket to version 1.7.5 or later. Until upgraded, reject untrusted capture input and avoid invoking packet or endpoint string formatting on packets with decoding errors.", "vendor": "go", "product": "go:github.com/gopacket/gopacket", "affected": [ { "affected_notes": [], "affected_ranges": [ "<= 1.7.4" ], "ecosystem": "go", "fixed_versions": [ "1.7.5" ], "package_name": "github.com/gopacket/gopacket", "purl": "pkg:golang/github.com/gopacket/gopacket" } ], "cwes": [ 125 ], "cvss_score": 7.5, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "deterministic", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 10.13427345, "t0_at": null, "signals": { "trigger_signal": { "at": "2026-11-04T04:08:55+00:00", "days": -0.05521129914351852, "is_lower_bound": true, "measured_at": "2026-11-04T05:28:25.290303+00:00", "url": "https://github.com/gopacket/gopacket/security/advisories/GHSA-5jhc-7qgc-hmgp" } } }
published 2026-11-04 04:23Z
last change 2026-11-04 05:22Z
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