CVE-2021-44537

Code execution via unvalidated server-supplied URL

Published Jan 15, 2022 · Updated Aug 4, 2024

Resource injection in ownCloud Desktop Client before 2.9.2 allows remote attackers to execute code through a server-supplied URL. The client’s server-response URL handling accepts an untrusted URL without validating it before the URL reaches a code-execution path. Exploitation requires user interaction; successful execution runs with the desktop client’s process privileges and can compromise its data and availability.

CVSS severityUnavailable
Unscored
EPSS probability2.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource injection in ownCloud Desktop Client before 2.9.2 allows remote attackers to execute code through a server-supplied URL. The client’s server-response URL handling accepts an untrusted URL without validating it before the URL reaches a code-execution path. Exploitation requires user interaction; successful execution runs with the desktop client’s process privileges and can compromise its data and availability.

The record

CVE
CVE-2021-44537
Published
Jan 15, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-99, CAPEC-240, T1204
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-99Improper Control of Resource Identifiers ('Resource Injection')
CAPEC-240Resource Injection
T1204User Execution

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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