CVE-2025-57785

MEDIUM

Hiawatha Webserver 11.7 - Unauthenticated Double Free in XSLT show_index

Title source: llm

Description

A Double Free in XSLT `show_index` has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to corrupt data which may lead to arbitrary code execution.

References (1)

Core 1

Core References

Release Notes

https://gitlab.com/hsleisink/hiawatha/-/blame/master/src/xslt.c?ref_type=heads#L675

View Writeup ZIP pw:eip

Scores

CVSS v3 6.5

EPSS 0.0034

EPSS Percentile 26.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-415

Status published

Products (1)

hiawatha.leisink/hiawatha_webserver 11.7

Published Jan 26, 2026

Tracked Since Feb 18, 2026