What is CVE-2026-2701?
Remote code execution in Progress ShareFile Storage Zones Controller (SZC) 5.x via arbitrary file upload and execution. After exploiting CVE-2026-2699 for admin access, an attacker modifies the Network Share Location to the IIS webroot and uploads a ZIP archive containing a malicious ASPX webshell via /upload.aspx with unzip=true, achieving code execution on the server.
The record classifies CVE-2026-2701 under weakness classes CWE-78, CWE-94, CWE-434. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs high-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 219 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 9.1 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - EPSS (FIRST)
- 3.4% probability of exploitation in the next 30 days, higher than 88.5% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 8.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-04-02, last modified 2026-04-03
Is CVE-2026-2701 being exploited?
It currently carries a trending score of 27 in the Threadlinqs vulnerability feed.
Affected products and versions
- Progress: ShareFile Storage Zones Controller
How to fix CVE-2026-2701
Vendor advisory: https://docs.sharefile.com/en-us/storage-zones-controller/5-0/security-vulnerability-feb26. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2026-2701
2 tracked threats in the Threadlinqs corpus reference CVE-2026-2701, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on .