CVE-2022-31248Network attack vector

Unauthenticated discovery of valid usernames

Published Jun 22, 2022 · Updated Sep 16, 2024

Observable response discrepancy in spacewalk-java in SUSE Manager Server 4.1 and 4.2 allows remote attackers to discover valid usernames. SUSE has not published the request handler or the exact response difference in spacewalk-java that exposes account validity. No credentials or user interaction are required; the disclosed consequence is limited to learning which usernames exist.

CVSS severity5.3
Medium
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Observable response discrepancy in spacewalk-java in SUSE Manager Server 4.1 and 4.2 allows remote attackers to discover valid usernames. SUSE has not published the request handler or the exact response difference in spacewalk-java that exposes account validity. No credentials or user interaction are required; the disclosed consequence is limited to learning which usernames exist.

The record

CVE
CVE-2022-31248
Published
Jun 22, 2022
Updated
Sep 16, 2024
Vendor
NeuVector
Product
SUSE Manager Server
Classifications
CWE-204, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=spacewalk-java <4.1.46-1
  2. Affected versionversion=spacewalk-java <4.2.37-1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NeuVector · SUSE Manager Serverversion=spacewalk-java <4.1.46-1; version=spacewalk-java <4.2.37-1

Published CVSS scores

5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3SUSECVSS:3.1/AV:N/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.

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-204Observable Response Discrepancy
T1087Account Discovery

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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