Remote code execution via unsafe deserialization in Progress ShareFile Storage Zones Controller's CICO service

published 2026-08-17 2 mo ago modified 2026-09-02 2 mo ago also EUVD-2026-60197

cvss: 8.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 0; none known

In Progress ShareFile Storage Zones Controller v5.12.5 and below versions, unsafe deserialization of untrusted file metadata can allow a user with write access to a Network share to execute arbitrary code on the Storage Zones Controller host.

Patch / fix

fixed in 1

progress sharefile_storage_zones_controller 5.12.6

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 mo ago (2026-08-17)

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.0	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Progress ShareFile Storage Zones Controller

Classification

Weakness

CWE-502 Deserialization of Untrusted Data

References

support.sharefile.com /s/article/ShareFile-Storage-Zone-Controller-SZC-Service-Disruption-Guidance-Login-Issues-and-Access-Informati
vendor-advisory

Sources

CVE List CVE-2026-16138
NVD CVE-2026-16138

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary