Public vulnerability disclosure

CVE-2026-82504

VITEC EZ TV Platform Server Unauthenticated File Upload via UploadHandler.ashx

publishedCWE-434CWE-306

VITEC EZ TV Platform Server before 8.5.0 contains an unrestricted file upload vulnerability in the upload handler that allows unauthenticated remote attackers to upload arbitrary files by supplying a target filename in the X-FILENAME request header with no authentication or file type validation required. Attackers can upload a malicious ASPX file directly to the web-accessible uploads directory, where it is immediately executable by the web server, achieving remote code execution in the context of the web server process. Patches are available for versions 8.3.0, 8.3.1, 8.4.0, and 8.4.1. Users running releases prior to 8.3.0 should upgrade to 8.5.0+.

Technical severity9.3 criticalCVSS 4.0 · CNA: VulnCheck
Published2026-11-13Source updated 2026-11-13
Collected2026-11-131 attributed source

Fixes and workarounds

Fix

All customers on an EZ TV Platform Server Version prior to 8.5.0 should contact the Vitec Helpdesk immediately to schedule patch or upgrade.

Source: CNA: VulnCheck

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
EZ TV Platform Server
VITEC
≥ 0; < 8.5.0 (affected, semver)
8.5.0 (unaffected, semver)
Other versions: unaffected
CNA: VulnCheck

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 9.3
critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCNA: VulnCheck
3.1 / 9.8
critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCNA: VulnCheck

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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