CVE-2023-50963Network attack vector

Session hijacking via unvalidated Host header

Published Jan 19, 2024 · Updated Jun 17, 2025

HTTP header injection in IBM Storage Defender Data Protect 1.0.0 through 1.4.1 allows remote attackers to hijack sessions via Host headers. IBM identifies improper Host-header validation but has not disclosed the affected request handler or how the value enters a response. No authentication is required; bounded consequences include cross-site scripting, cache poisoning, session hijacking, and related data exposure or modification.

CVSS severity6.5
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTTP header injection in IBM Storage Defender Data Protect 1.0.0 through 1.4.1 allows remote attackers to hijack sessions via Host headers. IBM identifies improper Host-header validation but has not disclosed the affected request handler or how the value enters a response. No authentication is required; bounded consequences include cross-site scripting, cache poisoning, session hijacking, and related data exposure or modification.

The record

CVE
CVE-2023-50963
Published
Jan 19, 2024
Updated
Jun 17, 2025
Vendor
IBM
Product
IBM Storage Defender Data Protect
Classifications
CWE-601, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record 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=1.0.0 <=1.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Storage Defender Data Protectversion=1.0.0 <=1.4.1

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.5IBM CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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-601URL Redirection to Untrusted Site ('Open Redirect')
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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