CVE-2024-49783Network attack vector

Encrypted-data disclosure via predictable CBC initialization vectors

Published Jul 8, 2025 · Updated Aug 24, 2025

Predictable CBC initialization vectors in IBM OpenPages 8.3 and 9.0 allow attackers to recover stored encrypted data. IBM identifies predictable IV generation in CBC-mode encrypted storage but does not disclose the responsible code path. Exploitation requires remote authenticated users with database access or local users with access to server files; the consequence is disclosure of protected data.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Predictable CBC initialization vectors in IBM OpenPages 8.3 and 9.0 allow attackers to recover stored encrypted data. IBM identifies predictable IV generation in CBC-mode encrypted storage but does not disclose the responsible code path. Exploitation requires remote authenticated users with database access or local users with access to server files; the consequence is disclosure of protected data.

The record

CVE
CVE-2024-49783
Published
Jul 8, 2025
Updated
Aug 24, 2025
Vendor
IBM
Product
OpenPages
Classifications
CWE-329
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 24, 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=8.3
  2. Affected versionversion=9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · OpenPagesversion=8.3; version=9.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.3IBM CorporationCVSS:3.1/AV:N/AC:H/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-329Generation of Predictable IV with CBC Mode

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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