CVE-2025-57783 — MEDIUM (5.3)

Vulnerability Description

Improper header parsing may lead to request smuggling has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to access restricted resources managed by Hiawatha webserver.

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Hiawatha-Webserver	Hiawatha	11.7

References

https://gitlab.com/hsleisink/hiawatha/-/blame/master/src/http.c?ref_type=heads#LProduct

FAQ

What is CVE-2025-57783?

CVE-2025-57783 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Improper header parsing may lead to request smuggling has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to access restricted resources managed by Hiawatha...

How severe is CVE-2025-57783?

CVE-2025-57783 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-57783?

Check the references section above for vendor advisories and patch information. Affected products include: Hiawatha-Webserver Hiawatha.