CVE-2023-33849Network attack vector

Information disclosure via sensitive query parameters

Published Jun 7, 2023 · Updated Jan 6, 2025

IBM CICS TX Advanced 10.1 and 11.1, Standard 11.1, and TXSeries 8.1, 8.2, and 9.1 expose sensitive query data to remote attackers. The Administration Console processes body parameters supplied in the URL query string, placing sensitive values in interceptable request metadata. Exploitation requires an adversary-in-the-middle position on the console traffic path, and the published impact is limited to confidentiality loss.

CVSS severity3.7
Low
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IBM CICS TX Advanced 10.1 and 11.1, Standard 11.1, and TXSeries 8.1, 8.2, and 9.1 expose sensitive query data to remote attackers. The Administration Console processes body parameters supplied in the URL query string, placing sensitive values in interceptable request metadata. Exploitation requires an adversary-in-the-middle position on the console traffic path, and the published impact is limited to confidentiality loss.

The record

CVE
CVE-2023-33849
Published
Jun 7, 2023
Updated
Jan 6, 2025
Vendor
IBM
Product
CICS TX Standard
Classifications
CWE-311, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 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=11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · CICS TX Standardversion=11.1
IBM · CICS TX Advancedversion=10.1, 11.1
IBM · TXSeries for Multiplatformsversion=8.1, 8.2, 9.1

Published CVSS scores

3.7IBM CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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.

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-311Missing Encryption of Sensitive Data
T1557Adversary-in-the-Middle

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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