CVE-2017-11317
Exploitation confirmed. First attested on 2022-04-11 by CISA-ADP, CISA KEV, GCVE · kevintel.
- Published2017-08-23
- WeaknessCWE-326
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
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.
Timeline
dates in UTC- 2017-08-2317:29CVE publishedNVD
- 2022-04-11Listed as exploited by GCVEGCVE
- 2022-04-11Exploitation first reportedCISA KEV
- 2022-04-11Added to the CISA KEV catalogCISA KEV
- 2025-02-0714:08SSVC exploitation set to activeCISA-ADP
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-11317?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-11317?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2016.3 | ≤ 2016.3.1027 | no fix published | NVD |
| 2017.2 | = 2017.2.503 | no fix published | NVD |
| 2017.2 | = 2017.2.621 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- CISA’s required action: Apply updates per vendor instructions.due 2022-05-02
Advisories and patches
- www.telerik.comMitigation · Vendor Advisory
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 3 repositories, unverifiedbao7uo/RAU_cryptoKasunPriyashan/Telerik-UI-ASP.NET-AJAX-Exploitation0xr2r/CVE-2017-11317-auto-exploit- PoC-in-GitHub
CISA Known Exploited Vulnerability
- Date Added
- 2022-04-11
- Patch Due Date
- 2022-05-02
- Ransomware Use
- Unknown
- Required Action
- Apply updates per vendor instructions.
Sources
- CISA KEVKEV entry2022-04-11
- GCVEexploitation2022-04-11
- CISA-ADPSSVC decisionactive2025-02-07
- OpenCVESSVC decisionactive—
- CISA-ADPCVSS 3.19.82025-02-07
- NVDCVSS 3.19.8read 2026-10-23
- NVDCVSS 2.07.5read 2026-10-23
- CISA-ADPweakness (CWE)CWE-3262025-02-07
- NVDweakness (CWE)CWE-326read 2026-10-23
- FIRST EPSSEPSS score84.2 %read 2026-10-23
- PoC-in-GitHubproof of concept3read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2017-08-23
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
Frequently asked questions
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.