CVE-2023-50941Network attack vector

Unauthorized account access via absent logout functionality

Published Feb 2, 2024 · Updated Aug 2, 2024

Session fixation in IBM PowerSC 1.3, 2.0, and 2.1 allows remote authenticated users to access another user's session. The web interface omits logout functionality and continues to accept a fixed session identifier after another user authenticates. Exploitation requires valid credentials and control of the fixed identifier; successful abuse grants the access held by the affected session.

CVSS severity6.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session fixation in IBM PowerSC 1.3, 2.0, and 2.1 allows remote authenticated users to access another user's session. The web interface omits logout functionality and continues to accept a fixed session identifier after another user authenticates. Exploitation requires valid credentials and control of the fixed identifier; successful abuse grants the access held by the affected session.

The record

CVE
CVE-2023-50941
Published
Feb 2, 2024
Updated
Aug 2, 2024
Vendor
IBM
Product
IBM PowerSC
Classifications
CWE-384, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=1.3, 2.0, 2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM PowerSCversion=1.3, 2.0, 2.1

Published CVSS scores

6.3IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-384Session Fixation
T1539Steal Web Session Cookie

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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