---
title: "CVE-2026-45762: Suricata - Denial of Service"
description: "Suricata < 7.0.16 and < 8.0.5 contain a denial of service caused by improper IP defragmentation tracker lookup allowing IPv6 fragments to be associated with IPv4 trackers, letting remote attackers crash the system via crafted fragmented packets, exploit requires crafted fragmented IPv4/IPv6 traffic."
url: https://panop.io/threat-heartbeat/CVE-2026-45762/
---

# CVE-2026-45762 Suricata - Denial of Service

Suricata < 7.0.16 and < 8.0.5 contain a denial of service caused by improper IP defragmentation tracker lookup allowing IPv6 fragments to be associated with IPv4 trackers, letting remote attackers crash the system via crafted fragmented packets, exploit requires crafted fragmented IPv4/IPv6 traffic.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.61% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-45762)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

10 September 2026

Updated

15 October 2026

Weakness

[CWE-843](https://cwe.mitre.org/data/definitions/843.html)

## Vendor fix

Upgrade to versions 7.0.16 or 8.0.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-45762](https://nvd.nist.gov/vuln/detail/CVE-2026-45762)
- [https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315](https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315)
- [https://github.com/OISF/suricata/security/advisories/GHSA-gv2j-f6jv-3878](https://github.com/OISF/suricata/security/advisories/GHSA-gv2j-f6jv-3878)
- [https://redmine.openinfosecfoundation.org/issues/8510](https://redmine.openinfosecfoundation.org/issues/8510)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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