CVE-2025-29915Network attack vector

Detection bypass via AF_PACKET reassembly truncation

Published Apr 10, 2025 · Updated Apr 10, 2025

Detection bypass in OISF Suricata before 7.0.9 allows remote attackers to evade inspection by sending fragmented packets. With AF_PACKET defrag enabled, the capture path reassembles fragments beyond its interface-MTU-derived 1,514-byte packet buffer and passes only the captured bytes to the engine. The option is enabled by default on Linux AF_PACKET deployments, so concealed content beyond that limit is neither inspected nor logged.

CVSS severity7.5
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Detection bypass in OISF Suricata before 7.0.9 allows remote attackers to evade inspection by sending fragmented packets. With AF_PACKET defrag enabled, the capture path reassembles fragments beyond its interface-MTU-derived 1,514-byte packet buffer and passes only the captured bytes to the engine. The option is enabled by default on Linux AF_PACKET deployments, so concealed content beyond that limit is neither inspected nor logged.

The record

CVE
CVE-2025-29915
Published
Apr 10, 2025
Updated
Apr 10, 2025
Vendor
Open Information Security Foundation
Product
Suricata
Classifications
CWE-347, T1562.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record 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=< 7.0.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open Information Security Foundation · Suricataversion=< 7.0.9

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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