How severe is CVE-2024-4358?

CVE-2024-4358 has a CVSS 3.1 base score of 9.8 (CRITICAL). EPSS estimates a 97.5% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2024-4358: Registration Authentication Bypass Vulnerability

CISA Known Exploited Vulnerabilities

Progress Telerik Report Server Authentication Bypass by Spoofing Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2024-06-13

Remediation due

2024-07-04

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

CISA notes
https://docs.telerik.com/report-server/knowledge-base/registration-auth-bypass-cve-2024-4358; https://nvd.nist.gov/vuln/detail/CVE-2024-4358

Description

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.

Severity

CVSS 3.1 · CNA9.8 CRITICAL

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

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Exploitation Context

as of October 15, 2026

All KEV statistics→

CISA added CVE-2024-4358 to the KEV catalog 15 days after its CVE record was published. The median for entries added in 2024 is 21.5 days.
It is one of 9 Progress entries in the CISA KEV catalog, and one of 3 added in 2024.
Its current EPSS score (97.5%) is higher than that of 83% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Progress Software Corporation	Progress Software Corporation Telerik Report Server	1.0.0 to <10.1.24.514

References

1 Links

Other references

https://docs.telerik.com/report-server/knowledge-base/registration-auth-bypass-cve-2024-4358

Record Details

Published

2024-05-29

Last updated

2025-10-21

Assigner (CNA)

ProgressSoftware

Credited to

Sina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam) working with Trend Micro Zero Day Initiative

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Tool categories

IAM Tools Application Security Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.

CVE-2024-4358