CVE-2025-61258: platform server Request Smuggling

Description

Outsystems Platform Server 11.18.1.37828 allows attackers to cause a denial of service via a crafted content-length value mismatching the body length. NOTE: the Supplier indicates that they are unable to reproduce this.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-444 CWE-444

Affected Products

Vendor	Product	Versions
outsystems	platform_server	All

References

Exploits

https://balwurk.github.io/CVE-2025-61258/

Other References

https://balwurk.com/ https://www.outsystems.com/

Frequently Asked Questions

What is CVE-2025-61258? +

Outsystems Platform Server 11.18.1.37828 allows attackers to cause a denial of service via a crafted content-length value mismatching the body length. NOTE: the Supplier indicates that they are unable to reproduce this. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-61258? +

CVE-2025-61258 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-61258? +

CVE-2025-61258 affects products from outsystems, specifically: platform_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-61258? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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