CVE-2022-34844Network attack vector

Service interruption via undisclosed traffic handling

Published Aug 4, 2022 · Updated Sep 16, 2024

Improper input validation in F5 BIG-IP and BIG-IQ on AWS allows remote attackers to terminate TMM with undisclosed network traffic. F5 identifies the locus as TMM traffic processing through the DPDK/ENA driver but has not disclosed which traffic is mishandled or how validation fails. Exposure requires an affected AWS deployment using that driver and conditions outside the attacker's control; a successful attempt interrupts traffic while TMM restarts.

CVSS severity5.9
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in F5 BIG-IP and BIG-IQ on AWS allows remote attackers to terminate TMM with undisclosed network traffic. F5 identifies the locus as TMM traffic processing through the DPDK/ENA driver but has not disclosed which traffic is mishandled or how validation fails. Exposure requires an affected AWS deployment using that driver and conditions outside the attacker's control; a successful attempt interrupts traffic while TMM restarts.

The record

CVE
CVE-2022-34844
Published
Aug 4, 2022
Updated
Sep 16, 2024
Vendor
F5 Networks
Product
BIG-IP
Classifications
CWE-20, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=15.1.x <15.1.6.1
  2. Affected versionversion=16.1.x <16.1.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IPversion=15.1.x <15.1.6.1; version=16.1.x <16.1.3.1
F5 Networks · BIG-IQ Centralized Managementversion=8.0.0 <8.x*

Published CVSS scores

5.9F5 NetworksCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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-20Improper Input Validation
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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