CVE-2021-38859

Unauthenticated version disclosure via crafted HTTP request

Published Oct 17, 2023 · Updated Sep 13, 2024

Information disclosure in IBM Security Verify Privilege On-Premises 11.5 allows remote attackers to obtain its version via HTTP. IBM has not disclosed the request path or the server-side operation that returns the version number. The request requires no authentication but must originate from an adjacent network, and the disclosed version can guide further attacks.

CVSS severity4.3
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in IBM Security Verify Privilege On-Premises 11.5 allows remote attackers to obtain its version via HTTP. IBM has not disclosed the request path or the server-side operation that returns the version number. The request requires no authentication but must originate from an adjacent network, and the disclosed version can guide further attacks.

The record

CVE
CVE-2021-38859
Published
Oct 17, 2023
Updated
Sep 13, 2024
Vendor
IBM
Product
IBM Security Verify Privilege On-Premises
Classifications
CWE-200, T1595.002
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 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=11.5

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

IBM · IBM Security Verify Privilege On-Premisesversion=11.5

Published CVSS scores

4.3IBMCVSS:3.1/AV:A/AC:L/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.

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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-200Exposure of Sensitive Information to an Unauthorized Actor
T1595.002Vulnerability Scanning

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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