CVE-2020-4494Network attack vector

Unauthenticated resource access via improper session validation

Published Jun 15, 2020 · Updated Sep 17, 2024

Authentication bypass in IBM Spectrum Protect client web interfaces allows remote attackers to access unauthorized resources. The interfaces improperly validate sessions, but IBM has not disclosed the affected request path or exact validation error. Network access to a configured interface is sufficient; affected Client releases are 8.1.7.0 through 8.1.9.1 on Linux and Windows and 8.1.9.0 through 8.1.9.1 on AIX, with the respective ranges also affecting Space Management.

CVSS severity7.5
High
EPSS probability2.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in IBM Spectrum Protect client web interfaces allows remote attackers to access unauthorized resources. The interfaces improperly validate sessions, but IBM has not disclosed the affected request path or exact validation error. Network access to a configured interface is sufficient; affected Client releases are 8.1.7.0 through 8.1.9.1 on Linux and Windows and 8.1.9.0 through 8.1.9.1 on AIX, with the respective ranges also affecting Space Management.

The record

CVE
CVE-2020-4494
Published
Jun 15, 2020
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Spectrum Protect for Space Management
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=8.1.7.0
  2. Affected versionversion=8.1.9.0
  3. Affected versionversion=8.1.9.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Spectrum Protect for Space Managementversion=8.1.7.0; version=8.1.9.0; version=8.1.9.1
IBM · IBM Spectrum Protect Clientversion=8.1.7.0; version=8.1.9.0; version=8.1.9.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5IBMCVSS:3.0/AV:N/AC:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

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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