CVE-2019-18935

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.997 · 100 %ileexploit · weaponizedDEEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 19 exploits · weaponized

Likely / severe?

99.7% (100th) EPSS

CVSS 7.5 · high

Is it mine?

12 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2021-11-03remediate by 2022-05-03

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-22

Progress Telerik UI for ASP.NET AJAX Deserialization of Untrusted Data Vulnerability

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-2017-11357, or other means. Exploitation can result in remote code execution. (As of 2020.1.114, a default setting prevents the exploit. In 2019.3.1023, but not earlier versions, a non-default setting can prevent exploitation.)

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedeSOMScisa_csaf_ot
Hitachi ABB Power Grids has published an advisory for eSOMS Telerik and advises users to update to eSOMS Version 6.3 as soon as possible.
https://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A8943&LanguageCode=en&DocumentPartId=&Action=Launch
MitigationeSOMScisa_csaf_ot
Recommended security practices and firewall configurations can help protect a process control network from attacks that originate from outside the network. Such practices include ensuring applications and servers are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that must be evaluated case by case. Sensitive application servers should not be used for Internet surfing, instant messaging, or receiving e-mails. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USprimaryCWE-502USCWE-502US

ATT&CK techniques

ATT&CK techniques this enables or maps to.

exploits (19)

Public proof-of-concept and weaponised exploit code.

exploit/windows/http/telerik_rau_deserializationTelerik UI ASP.NET AJAX RadAsyncUpload Deserializationweaponized · metasploit
EDB-47793Telerik UI - Remote Code Execution via Insecure DeserializationPoC · exploit_db
0xAgun/CVE-2019-18935-checker0xAgun/CVE-2019-18935-checkerPoC · poc_in_github
0xsharz/telerik-scanner-CVE-2019-18935Telerik CVE-2019-18935 Vulnerability ScannerPoC · poc_in_github
KasunPriyashan/Telerik-UI-ASP.NET-AJAX-ExploitationUnrestricted File Upload by Weak Encryption affected versions (CVE-2017-11317) 2. Remote Code Execution by Insecure Deserialization - (CVE-2019-18935)PoC · poc_in_github
ThanHuuTuan/CVE_2019_18935This project for CVE-2019-18935PoC · poc_in_github

affected products (12)

Products and version ranges known to be affected.

Oracle Health Sciences Applications 5.4.0.2all versionscert_bundDEcpe:/a:oracle:health_sciences_applications:5.4.0.2
Oracle Health Sciences Applications <6.3.1.3all versionscert_bundDE
Oracle Health Sciences Applications <7.0.0.1all versionscert_bundDE
Oracle Health Sciences Applications <8.2.3all versionscert_bundDE
Oracle Health Sciences Applications< 6.3.1.3cert_bundDE
Oracle Health Sciences Applications< 7.0.0.1cert_bundDE
Oracle Health Sciences Applications< 8.2.3cert_bundDE
eSOMS: all versions prior to 6.3 using a version of Telerik softwareall versionscisa_csaf_otUS
Hitachi Energy eSOMS< 6.3 of telerik softwarecisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
Telerik AD Telerik UI2011.1.315 → 2019.3.1023fstec_bduRU
telerik ui for asp.net ajax2011.1.315 → 2020.1.114nvdUScpe:2.3:a:telerik:ui_for_asp.net_ajax:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1015Oracle Health Sciences Applications: Mehrere SchwachstellenDeutsch2023-04-18csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Health Sciences Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
ICSA-21-077-03Hitachi ABB Power Grids eSOMS Telerik2021-03-18icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to upload malicious files to the server, discover sensitive information, or execute arbitrary code.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund cisa_csaf_ot nvd NVD CVE.org MITRE

published 2019-12-11modified 2026-06-17

related (3,717)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-63077US	—OT critical	89.6% (100th)	KEV	2026-07-27
In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol
CVE-2026-58644US	—OT critical	15.9% (97th)	KEV	2026-07-14
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
CVE-2026-50522US	—OT critical	3.04% (87th)	KEV	2026-07-14
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
CVE-2026-12569US	critical9.8OT critical	46.0% (99th)	KEV	2026-06-18
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
CVE-2026-45247US	—OT critical	2.08% (81st)	KEV	2026-05-26
Mirasvit Full Page Cache Warmer for Magento 2 before version 1.11.12 contains a PHP object injection vulnerability that allows unauthenticated attackers to achieve remote code exec…

+3712 more

references (36)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan