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CVE-2024-4358 CISA KEV — actively exploited

Progress Telerik Report Server Authentication Bypass by Spoofing Vulnerability

Progress Software Corporation — Telerik Report Server

In Progress Telerik Report Server, version 2024 Q1 (10.0.24.305) or earlier, on IIS, an unauthenticated attacker can gain access to Telerik Report Server restricted functionality via an authentication bypass vulnerability.

CVSS scoreCritical

9.8

EPSS — exploitation probabilityCritical

97.5%

Vector breakdown

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published
May 29, 2024
Modified
Oct 21, 2025
Added to KEV
Jun 13, 2024
Federal patch due
Jul 4, 2024

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Weakness classification

Proof-of-concept & exploitation references

Public repositories whose name or description references CVE-2024-4358, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.

No public GitHub repositories referencing CVE-2024-4358 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.

References

Frequently asked questions

What is CVE-2024-4358?

In Progress Telerik Report Server, version 2024 Q1 (10.0.24.305) or earlier, on IIS, an unauthenticated attacker can gain access to Telerik Report Server restricted functionality via an authentication bypass vulnerability.

How severe is CVE-2024-4358?

CVE-2024-4358 has a CVSS base score of 9.8 out of 10 (CVSS 3.1).

Is CVE-2024-4358 actively exploited in the wild?

Yes. CVE-2024-4358 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Jun 13, 2024, meaning CISA has confirmed evidence of active exploitation.

What is the EPSS score for CVE-2024-4358?

97.5% - meaning FIRST.org's EPSS model estimates a 97.5% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).

Is there exploit tooling available for CVE-2024-4358?

Yes - a public Nuclei template referencing CVE-2024-4358 exist in public repositories we checked.

What type of vulnerability is CVE-2024-4358?

CVE-2024-4358 is classified under CWE-290 (CWE-290 Authentication Bypass by Spoofing).

Cross-checked against

Impactr finds and proves whether CVE-2024-4358 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.