Deserialization in Telerik Ui_for_asp.net_ajax
CVE-2019-18935
Progress Telerik UI for ASP.NET AJAX through 2019.3.1023 contains a .NET deserialization vulnerability in the RadAsyncUpload function. This is exploitable when the encryption keys are known due to the presence of CVE-2017-11317 or CVE-2017…
Vulnerability class: Insecure Deserialization
EPSS: 0.997 (100.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Telerik Ui_for_asp.net_ajax
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- cve@mitre.org (Release Notes, Vendor Advisory)
- cve@mitre.org (Not Applicable)
- cve@mitre.org (Patch, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory)
- cve@mitre.org (Release Notes)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory)
- cve@mitre.org (Press/Media Coverage)
Frequently asked questions
- What is CVE-2019-18935?
- CVE-2019-18935 is a critical-severity vulnerability in Telerik Ui_for_asp.net_ajax, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-12-11.
- How severe is CVE-2019-18935?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-18935 known to be exploited?
- Yes. CVE-2019-18935 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 101 public proof-of-concept repositories are indexed.