How severe is CVE-2026-16137?

CVE-2026-16137 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-16137 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-16137?

CVE-2026-16137 affects Progress Sharefile Storage Zones Controller. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-16137?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-16137 published?

CVE-2026-16137 was published on 2026-08-17 and last updated on 2026-09-02.

CVE-2026-16137

CVE-2026-16137 is a high-severity vulnerability in Progress Sharefile Storage Zones Controller with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Progress Sharefile Storage Zones Controller
Published: 2026-08-17
Last modified: 2026-09-02

Description

In Progress ShareFile Storage Zones Controller v5.12.5 and below, a party with valid zone credentials can perform path traversal using resumable upload initiation endpoint, allowing the party to write arbitrary content to any location writable by the application's service account. This may result in the execution of attacker-supplied code.

Frequently asked questions

What is CVE-2026-16137?: In Progress ShareFile Storage Zones Controller v5.12.5 and below, a party with valid zone credentials can perform path traversal using resumable upload initiation endpoint, allowing the party to write arbitrary content to any location writable by the application's service account. This may result in the execution of attacker-supplied code.
How severe is CVE-2026-16137?: CVE-2026-16137 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-16137 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-16137?: CVE-2026-16137 affects Progress Sharefile Storage Zones Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-16137?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-16137 published?: CVE-2026-16137 was published on 2026-08-17 and last updated on 2026-09-02.

References

https://support.sharefile.com/s/article/ShareFile-Storage-Zone-Controller-SZC-Service-Disruption-Guidance-Login-Issues-and-Access-Information

Affected products (1)

cpe:2.3:a:progress:sharefile_storage_zones_controller:*:*:*:*:*:*:*:*

More vulnerabilities in Progress Sharefile Storage Zones Controller

CVE-2026-2699 — Critical (CVSS 9.8): Customer Managed ShareFile Storage Zones Controller (SZC) allows an unauthenticated attacker to access restricted…
CVE-2026-2701 — Critical (CVSS 9.1): Authenticated user can upload a malicious file to the server and execute it, which leads to remote code execution.
CVE-2026-15724 — High (CVSS 8.7): In Progress ShareFile Storage Zones Controller versions prior to 5.12.5 and 6.0.2, an authenticated administrative user…
CVE-2026-16138 — High (CVSS 8.0): In Progress ShareFile Storage Zones Controller v5.12.5 and below versions, unsafe deserialization of untrusted file…
CVE-2026-16139 — High (CVSS 7.2): In Progress ShareFile Storage Zones Controller versions <= 5.12.5 and <= 6.0.2, an authenticated zone administrator can…

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