CVE-2023-50315

Information disclosure via missing TLS hostname validation

Published Aug 14, 2024 · Updated Aug 14, 2024

Improper certificate validation in IBM WebSphere Application Server 8.5 and 9.0 allows remote attackers to obtain sensitive information. For outbound TLS connections, the runtime accepts a trusted certificate without ensuring its hostname matches the destination hostname. Exploitation requires an adjacent-network spoofing position and a certificate from a trusted authority; the reported consequence is sensitive-information disclosure only.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in IBM WebSphere Application Server 8.5 and 9.0 allows remote attackers to obtain sensitive information. For outbound TLS connections, the runtime accepts a trusted certificate without ensuring its hostname matches the destination hostname. Exploitation requires an adjacent-network spoofing position and a certificate from a trusted authority; the reported consequence is sensitive-information disclosure only.

The record

CVE
CVE-2023-50315
Published
Aug 14, 2024
Updated
Aug 14, 2024
Vendor
IBM
Product
IBM WebSphere Application Server
Classifications
CWE-295, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 14, 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

IBM · IBM WebSphere Application Serverversion=8.5, 9.0

Published CVSS scores

5.3IBM CorporationCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
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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