CVE-2024-31166Network attack vector

Service interruption via version-bitmap out-of-bounds read

Published Sep 18, 2024 · Updated Sep 18, 2024

Out-of-bounds read in libfluid_msg 0.1.0 allows remote attackers to interrupt an OpenFlow component via a crafted Hello message. HelloElemVersionBitmap::unpack reads past the supplied OpenFlow 1.3 version-bitmap buffer while unmarshalling a Hello element; Nozomi has not published the specific missing bounds check or triggering bitmap values. No authentication or user interaction is required, and exposure exists when a controller or driver using the library parses untrusted OpenFlow traffic, with reported impact limited to information exposure and service interruption.

CVSS severity6.5
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in libfluid_msg 0.1.0 allows remote attackers to interrupt an OpenFlow component via a crafted Hello message. HelloElemVersionBitmap::unpack reads past the supplied OpenFlow 1.3 version-bitmap buffer while unmarshalling a Hello element; Nozomi has not published the specific missing bounds check or triggering bitmap values. No authentication or user interaction is required, and exposure exists when a controller or driver using the library parses untrusted OpenFlow traffic, with reported impact limited to information exposure and service interruption.

The record

CVE
CVE-2024-31166
Published
Sep 18, 2024
Updated
Sep 18, 2024
Vendor
Open Networking Foundation
Product
libfluid
Classifications
CWE-125, CAPEC-540, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2024Record 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=0.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open Networking Foundation · libfluidversion=0.1.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5Nozomi Networks Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

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-125Out-of-bounds Read
CAPEC-540Overread Buffers
T1499.004Application or System Exploitation

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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