ClosedPatched

ZK Framework AuUploader: Unspecified (CVE-2022-36537)

ZK Framework AuUploader

ZK Framework AuUploader servlets contain an unspecified vulnerability that could allow an attacker to retrieve the content of a file located in the web context. The ZK Framework is an open-source Java framework. This vulnerability can impact multiple products, including but not limited to ConnectWise R1Soft Server Backup Manager. Added to CISA KEV on 2023-02-27. CISA lists known use in ransomware campaigns.

Why this severity: CVSS 7.5 (NVD), actively exploited (CISA KEV), known ransomware use

Started: Feb 27, 2023
Closed: Feb 27, 2023
CVE: CVE-2022-36537

Follow this incident

Updated Feb 27, 2023

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Feb 27, 2023
CISA added CVE-2022-36537 to the KEV catalog (due 2023-03-20).

Advisories3

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. Exact affected/fixed version strings are not always in the KEV record — verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier).

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