CVE-2021-35492
mediumpriority · track · 37EPSS 0.033 · 89 %ileexploit · PoCEUUSEPSS · scored 2026-10-27
Wowza Streaming Engine through 4.8.11+5 could allow an authenticated, remote attacker to exhaust filesystem resources via the /enginemanager/server/vhost/historical.jsdata vhost parameter. This is due to the insufficient management of available filesystem resources. An attacker could exploit this vulnerability through the Virtual Host Monitoring section by requesting random virtual-host historical data and exhausting available filesystem resources. A successful exploit could allow the attacker to cause database errors and cause the device to become unresponsive to web-based management. (Manual intervention is required to free filesystem resources and return the application to an operational state.)
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
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references (10)
External citations — patches, advisories, analysis.
- https://n4nj0.github.io/advisories/wowza-streaming-engine-i/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-35492cnnvd
- https://www.gruppotim.it/redteamcnnvd
- https://www.wowza.com/docs/wowza-streaming-engine-4-8-14-release-notescnnvd
- https://n4nj0.github.io/advisories/wowza-streaming-engine-i/enisa_euvd
- https://www.gruppotim.it/redteamenisa_euvd
- https://www.wowza.com/docs/wowza-streaming-engine-4-8-14-release-notesenisa_euvd
- https://n4nj0.github.io/advisories/wowza-streaming-engine-i/Third Party Advisorynvd
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