CVE-2022-24741

low-risk
Published 2022-03-09

Nextcloud server is an open source, self hosted cloud style services platform. In affected versions an attacker can cause a denial of service by uploading specially crafted files which will cause the server to allocate too much memory / CPU. It is recommended that the Nextcloud Server is upgraded to 21.0.8 , 22.2.4 or 23.0.1. Users unable to upgrade should disable preview generation with the `'enable_previews'` config flag.

Do I need to act?

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0.76% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.5/10 Low
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Nextcloud

References (8)

Third Party Advisory https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jf3h-x...
Patch https://github.com/nextcloud/server/pull/30291
Exploit https://hackerone.com/reports/1261225
Third Party Advisory https://security.gentoo.org/glsa/202208-17
Third Party Advisory https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jf3h-x...
Patch https://github.com/nextcloud/server/pull/30291
Exploit https://hackerone.com/reports/1261225
Third Party Advisory https://security.gentoo.org/glsa/202208-17
26
/ 100
low-risk
Severity 16/34 · Moderate
Exploitability 3/34 · Minimal
Exposure 7/34 · Low