CVE-2021-36349Network attack vector

Authenticated port scanning via DNS client SSRF

Published Jan 24, 2022 · Updated Sep 17, 2024

Server-side request forgery in Dell Data Protection Central 19.5 and earlier allows remote authenticated users to scan external hosts. The DPC DNS client sends requests that reveal external-host port reachability, but Dell has not published the specific input path or validation failure. Low-privileged access is required, and the reported consequence is limited to indirect disclosure of reachable ports.

CVSS severity4.3
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Dell Data Protection Central 19.5 and earlier allows remote authenticated users to scan external hosts. The DPC DNS client sends requests that reveal external-host port reachability, but Dell has not published the specific input path or validation failure. Low-privileged access is required, and the reported consequence is limited to indirect disclosure of reachable ports.

The record

CVE
CVE-2021-36349
Published
Jan 24, 2022
Updated
Sep 17, 2024
Vendor
Dell
Product
Data Protection Central
Classifications
CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 24, 2022CVE 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=unspecified <19.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dell · Data Protection Centralversion=unspecified <19.6

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
4.3DellCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

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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