CVE-2026-6023Disclosure(progress / telerik_ui_for_asp.net_ajax)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

In Progress® Telerik® UI for AJAX versions 2024.4.1114 through 2026.1.421, the RadFilter control is vulnerable to insecure deserialization when restoring filter state if the state is exposed to the client. If an attacker tampers with this state, a server-side remote code execution is possible.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-deserialization-of-untrusted-data-cve-2026-6023

Weakness type (CWE)

CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

telerik_ui_for_asp.net_ajax

Threat summary

3 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 2 signals
Disclosure: 3 classified signals
Peaked 1d ago at 2 mentions (2026-04-23); latest day: 1
3 total mentions across 2 days

Affected systems

Vendors

progress

Products

telerik_ui_for_asp.net_ajax

Deep dive

Activity timeline3 mentions / 2d

Signal classification1 categories

Disclosure

3100.0%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-04-23	2	Disclosure2
2026-05-19	1	Disclosure1

Full discourse3 posts

CERT-PY@CERTpy143d
Disclosure
⚠️ Vulnerabilidades en productos Progress ❗ CVE-2026-6023 ❗ CVE-2026-6022 ➡️ Más info: https://www.cert.gov.py/vulnerabilidades-en-productos-progress-4/ https://t.co/i1d3Th8sHU
Post summary
A brief notice listing two CVEs for Progress products and providing a link for more details; no PoC, exploit, active use, patch, or debunking information is included.
0000097
6.7K followersView on X
CVE@CVEnew169d
Disclosure
CVE-2026-6023 In Progress® Telerik® UI for AJAX versions 2024.4.1114 through 2026.1.421, the RadFilter control is vulnerable to insecure deserialization when restoring filter state i… https://www.cve.org/CVERecord?id=CVE-2026-6023
Post summary
The bulletin announces an insecure deserialization flaw in Telerik UI for AJAX’s RadFilter control, but offers no PoC, exploitation, patch, or debunking details.
00000176
57.2K followersView on X
cybersecuritypath@cybrsecpath169d
Disclosure
CVE-2026-6023: Telerik AJAX Flaw Enables Remote Code Execution https://thecybrdef.com/cve-2026-6023-telerik-ajax-rce-vulnerability/ #CVE20266023 #Telerik #CyberSecurity
Post summary
The post announces CVE-2026-6023, a Telerik AJAX flaw that allows remote code execution, but provides no PoC, exploit, or patch details.
0000062
6 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	progress	telerik_ui_for_asp.net_ajax	-	-	-

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