CVE-2024-45796Network attack vector

Inspection bypass via fragment reassembly off-by-one

Published Oct 16, 2024 · Updated Apr 2, 2026

Off-by-one error in Suricata before 7.0.7 allows remote attackers to bypass inspection with crafted IP fragments. The defragmentation engine fails to reassemble valid fragmented traffic, but the upstream advisory does not disclose the incorrect boundary operation. No authentication or user interaction is required; traffic that Suricata fails to reassemble can evade detection or inline policy enforcement.

CVSS severity5.3
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Off-by-one error in Suricata before 7.0.7 allows remote attackers to bypass inspection with crafted IP fragments. The defragmentation engine fails to reassemble valid fragmented traffic, but the upstream advisory does not disclose the incorrect boundary operation. No authentication or user interaction is required; traffic that Suricata fails to reassemble can evade detection or inline policy enforcement.

The record

CVE
CVE-2024-45796
Published
Oct 16, 2024
Updated
Apr 2, 2026
Vendor
Open Information Security Foundation
Product
Suricata
Classifications
CWE-193, T1562.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <7.0.7
  2. Affected versionversion=< 7.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open Information Security Foundation · Suricataversion=0 <7.0.7; version=< 7.0.7

Published CVSS scores

5.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-193Off-by-one Error
T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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