CVE-2025-29916

Service interruption via unbounded dataset hash allocation

Published Apr 10, 2025 · Updated Apr 10, 2025

Resource exhaustion in Suricata before 7.0.9 allows local users supplying untrusted rules to interrupt service through oversized dataset hashes. DatasetGet accepts each rule-declared hashsize without per-dataset or cumulative bounds and passes it into hash-table allocation. Exploitation requires the engine to load attacker-controlled rules; oversized allocations exhaust available memory and interrupt the engine.

CVSS severity6.2
Medium
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

Resource exhaustion in Suricata before 7.0.9 allows local users supplying untrusted rules to interrupt service through oversized dataset hashes. DatasetGet accepts each rule-declared hashsize without per-dataset or cumulative bounds and passes it into hash-table allocation. Exploitation requires the engine to load attacker-controlled rules; oversized allocations exhaust available memory and interrupt the engine.

The record

CVE
CVE-2025-29916
Published
Apr 10, 2025
Updated
Apr 10, 2025
Vendor
Open Information Security Foundation
Product
Suricata
Classifications
CWE-770, T1499.004
Attack vector
local
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 vectorlocal
Required privilegesunauthenticated

What is affected?

Open Information Security Foundation · Suricataversion=< 7.0.9

Published CVSS scores

6.2GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

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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