CVE-2023-4129Network attack vector

Plaintext recovery via SSH CBC encryption

Published Sep 27, 2023 · Updated Sep 23, 2024

Inadequate encryption in Dell Data Protection Central 19.9 allows remote attackers to recover plaintext from SSH ciphertext blocks. The SSH service permits CBC-mode encryption, and the resulting ciphertext blocks can be recovered as plaintext. Exploitation requires network reachability to the SSH service and no account; Dell does not disclose the additional conditions behind the attack complexity.

CVSS severity5.9
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Inadequate encryption in Dell Data Protection Central 19.9 allows remote attackers to recover plaintext from SSH ciphertext blocks. The SSH service permits CBC-mode encryption, and the resulting ciphertext blocks can be recovered as plaintext. Exploitation requires network reachability to the SSH service and no account; Dell does not disclose the additional conditions behind the attack complexity.

The record

CVE
CVE-2023-4129
Published
Sep 27, 2023
Updated
Sep 23, 2024
Vendor
Dell
Product
Data Protection Central
Classifications
CWE-326
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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=Version 19.9.0-10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Dell · Data Protection Centralversion=Version 19.9.0-10

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9DellCVSS:3.1/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.

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-326Inadequate Encryption Strength

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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