CVE-2021-2446Network attack vector

Unauthenticated takeover requiring user interaction

Published Jul 20, 2021 · Updated Sep 25, 2024

Unspecified vulnerability in the Oracle Secure Global Desktop 5.6 client allows remote attackers to take over the product via multiple protocols. Oracle has not published the affected client code path or the incorrect operation it performs on untrusted input. Exploitation requires no credentials but does require another person to interact, and a successful attack compromises confidentiality, integrity, and availability beyond the client's security scope.

CVSS severity9.6
Critical
EPSS probability1.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unspecified vulnerability in the Oracle Secure Global Desktop 5.6 client allows remote attackers to take over the product via multiple protocols. Oracle has not published the affected client code path or the incorrect operation it performs on untrusted input. Exploitation requires no credentials but does require another person to interact, and a successful attack compromises confidentiality, integrity, and availability beyond the client's security scope.

The record

CVE
CVE-2021-2446
Published
Jul 20, 2021
Updated
Sep 25, 2024
Vendor
Oracle Corporation
Product
Oracle Secure Global Desktop
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=5.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle Secure Global Desktopversion=5.6

Published CVSS scores

9.6OracleCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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

No sourced classifications are available.

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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