Threat Intelligence / CVE / CVE-2017-11317

CVE-2017-11317 — telerik:ui_for_asp.net_ajax

CVSS v3.1 9.8 (CRITICAL) · EPSS 91.7% (higher than 99.6% of all scored CVEs) · Priority 8.9/10 · Published 2017-08-23

As of 2025-10-22, CVE-2017-11317 is a CRITICAL-severity vulnerability in telerik:ui_for_asp.net_ajax, CVSS v3.1 9.8, EPSS 91.7% (99.6th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2017-11317, most recently “APT35 (Charming Kitten) GCC Pre-Positioning Cyber Reconnaissance Campaign Enabling Kinetic Targeting”.

Last updated: 2025-10-22

What is CVE-2017-11317?

Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX before R1 2017 and R2 before R2 2017 SP2 uses weak RadAsyncUpload encryption, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

The record classifies CVE-2017-11317 under weakness class CWE-326. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, 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 3308 days ago.

Severity and exploitation probability

CVSS v3.1 base score: 9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST): 91.7% probability of exploitation in the next 30 days, higher than 99.6% of all scored CVEs
CISA KEV: Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority: 8.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published: 2017-08-23, last modified 2025-10-22

Is CVE-2017-11317 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

Affected products and versions

(vendor unspecified): telerik:ui_for_asp.net_ajax

How to fix CVE-2017-11317

No vendor patch reference has been recorded for CVE-2017-11317 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2017-11317

1 tracked threat in the Threadlinqs corpus references CVE-2017-11317, either in the campaign’s CVE list or as an indicator on the campaign record.

APT35 (Charming Kitten) GCC Pre-Positioning Cyber Reconnaissance Campaign Enabling Kinetic Targeting — CRITICAL · 2026-04-09

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

Full detection coverage & IOCs for threats exploiting CVE-2017-11317 are available via the Threadlinqs MCP server (Purple tier). View plans →

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