CVE-2022-33955

Physical-access code execution via back-and-refresh attack

Published Aug 1, 2022 · Updated Sep 16, 2024

Code execution in IBM CICS TX Standard and Advanced 11.1 allows physically proximate attackers to run code through a back-and-refresh attack. IBM has not published the affected component or the operation that mishandles input during the back-and-refresh sequence. Exploitation requires physical access to the Linux host and can affect data confidentiality, integrity, and service availability.

CVSS severity4.3
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in IBM CICS TX Standard and Advanced 11.1 allows physically proximate attackers to run code through a back-and-refresh attack. IBM has not published the affected component or the operation that mishandles input during the back-and-refresh sequence. Exploitation requires physical access to the Linux host and can affect data confidentiality, integrity, and service availability.

The record

CVE
CVE-2022-33955
Published
Aug 1, 2022
Updated
Sep 16, 2024
Vendor
IBM
Product
CICS TX Standard
Classifications
CWE-78
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 1, 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=11.1

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

IBM · CICS TX Standardversion=11.1
IBM · CICS TX Advancedversion=11.1

Published CVSS scores

4.3IBM CorporationCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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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