CVE-2026-46352

HIGH

7.5

CVSS v3

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, Suricata's IP defragmentation code could deadlock when processing fragmented traffic containing an encapsulated tunnel protocol whose payload is itself fragmented. Version 8.0.5 contains a fix. No known workarounds are available.

CWE-833

How to fix

Remediation Available

suricataDebian

Fixed in:1:8.0.5-1CVE-2026-46352

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

EPSS data unavailable for this CVE.

References

Other references3

Related Vulnerabilities

Other CWE-833 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-21313	Medium	6.5	1.6%	-	Fix
CVE-2021-1622	High	8.6	1.0%	-	Fix
CVE-2026-44579	High	7.5	0.7%	-	Fix
CVE-2025-1713	High	7.5	0.7%	-	Fix
CVE-2022-43767	High	7.5	0.7%	-	Fix
CVE-2024-8447	Medium	5.9	0.6%	-	Fix

Common questions

How do I fix CVE-2026-46352?

Upgrade suricata on debian unstable to 1:8.0.5-1 or later.

How severe is CVE-2026-46352?

CVE-2026-46352 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-46352 affect?

Published advisories record a fix for suricata (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-17.