CVE-2021-26236: faststone image viewer

csirt@kutim:~/threat-intel/cve/CVE-2021-26236

CVSS 7.8 · High EPSS 2,0%

Kerentanan Out-of-bounds Write pada faststone image viewer. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

FastStone Image Viewer v.<= 7.5 is affected by a Stack-based Buffer Overflow at 0x005BDF49, affecting the CUR file parsing functionality (BITMAPINFOHEADER Structure, 'BitCount' file format field), that will end up corrupting the Structure Exception Handler (SEH). Attackers could exploit this issue to achieve code execution when a user opens or views a malformed/specially crafted CUR file.

Rincian

Terbit di NVD: 18 Maret 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-787: Out-of-bounds Write
EPSS (30 hari): 2,0% peluang dieksploitasi; lebih tinggi dari 79,8% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
faststone	image viewer	Semua versi hingga 7.5

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://voidsec.com/advisories/cve-2021-26236-faststone-image-viewer-v-7-5-stack-based-buffer-overflow/ exploit · advisory pihak ketiga
https://voidsec.com/fuzzing-faststone-image-viewer-cve-2021-26236 exploit · advisory pihak ketiga
https://www.exploit-db.com/exploits/49660 exploit · advisory pihak ketiga · vdb entry

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.