CVE-2026-25646
libpng1.6 - security update
8.1
HIGH
CVSS 3.1
EPSS 0.95%
描述
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer. The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is fixed in 1.6.55.
如何修補 CVE-2026-25646
要修補 CVE-2026-25646,請將受影響套件升級到下列已修補版本。
- —升級至 1.6.55-r0 或更新版本
- —升級至 1.6.37-3+deb11u2 或更新版本
- —升級至 1.6.39-2+deb12u3 或更新版本
CVE-2026-25646 正在被利用嗎?
低 — EPSS 為 1.0%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 1.6.55-r0
- from 0, < 1.6.37-3+deb11u2
- from 0, < 1.6.39-2+deb12u3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |