CVE-2023-30994Network attack vector

Sensitive-data decryption via undisclosed weak cryptography

Published Oct 14, 2023 · Updated Sep 16, 2024

Weak cryptography in IBM QRadar SIEM 7.5.0 through 7.5.0 UP6 allows remote attackers to decrypt highly sensitive information. IBM has not published the affected cryptographic component, algorithm, protected data path, or method by which ciphertext becomes available. Exploitation requires network reachability and high complexity but no prior privileges or user interaction; the reported consequence is disclosure only.

CVSS severity5.9
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak cryptography in IBM QRadar SIEM 7.5.0 through 7.5.0 UP6 allows remote attackers to decrypt highly sensitive information. IBM has not published the affected cryptographic component, algorithm, protected data path, or method by which ciphertext becomes available. Exploitation requires network reachability and high complexity but no prior privileges or user interaction; the reported consequence is disclosure only.

The record

CVE
CVE-2023-30994
Published
Oct 14, 2023
Updated
Sep 16, 2024
Vendor
IBM
Product
QRadar SIEM
Classifications
CWE-327
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2023CVE 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

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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=7.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · QRadar SIEMversion=7.5.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9IBMCVSS:3.0/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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