CVE-2026-33721: osgeo mapserver

csirt@kutim:~/threat-intel/cve/CVE-2026-33721

CVSS 7.5 · High EPSS 0,82%

Kerentanan Out-of-bounds Write pada osgeo mapserver. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

MapServer is a system for developing web-based GIS applications. Starting in version 4.2 and prior to version 8.6.1, a heap-buffer-overflow write in MapServer’s SLD (Styled Layer Descriptor) parser lets a remote, unauthenticated attacker crash the MapServer process by sending a crafted SLD with more than 100 Threshold elements inside a ColorMap/Categorize structure (commonly reachable via WMS GetMap with SLD_BODY). Version 8.6.1 patches the issue.

Rincian

Terbit di NVD: 27 Maret 2026
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-787: Out-of-bounds Write
EPSS (30 hari): 0,82% peluang dieksploitasi; lebih tinggi dari 55,9% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
osgeo	mapserver	Versi 4.2.0 hingga sebelum 8.6.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/MapServer/MapServer/security/advisories/GHSA-cv4m-mr84-fgjp exploit · mitigasi · advisory vendor
https://github.com/MapServer/MapServer/releases/tag/rel-8-6-1 product · release notes
https://lists.debian.org/debian-lts-announce/2026/04/msg00017.html

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.