Heap-based Buffer Overflow in the de_dotdot function in libhttpd.c in sthttpd before 2.27.1 allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted filename.
https://github.com/blueness/sthttpd/releases/tag/v2.27.1
https://github.com/blueness/sthttpd/commit/c0dc63a49d8605649f1d8e4a96c9b468b0bff660
http://www.openwall.com/lists/oss-security/2017/06/15/9
Source: Mitre, NVD
Published: 2017-06-29
Updated: 2026-06-17
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00287