CVE-2023-35890

Local information disclosure via improper configuration encoding

Published Jul 7, 2023 · Updated Oct 24, 2024

Improper encoding in a local configuration file in IBM WebSphere Application Server 8.5 and 9.0 allows local users to read sensitive data. The public advisory does not identify the file, its contents, or the faulty encoding operation; IBM marks the APAR's technical conclusion confidential. Exploitation requires local access and high complexity, and the published vector limits the consequence to confidentiality loss without integrity or availability impact.

CVSS severity5.1
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper encoding in a local configuration file in IBM WebSphere Application Server 8.5 and 9.0 allows local users to read sensitive data. The public advisory does not identify the file, its contents, or the faulty encoding operation; IBM marks the APAR's technical conclusion confidential. Exploitation requires local access and high complexity, and the published vector limits the consequence to confidentiality loss without integrity or availability impact.

The record

CVE
CVE-2023-35890
Published
Jul 7, 2023
Updated
Oct 24, 2024
Vendor
IBM
Product
IBM WebSphere Application Server
Classifications
CWE-327
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 24, 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=8.5, 9.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

IBM · IBM WebSphere Application Serverversion=8.5, 9.0

Published CVSS scores

5.1IBM CorporationCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm

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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