CVE-2026-44663— OpenEXR HTJ2K解码器整数溢出致堆缓冲溢出漏洞
可能的 ATT&CK 技术 1AI
T1190 · Exploit Public-Facing Application影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| AcademySoftwareFoundation | openexr | >= 3.4.0, < 3.4.11 | affected |
获取后续新漏洞提醒登录后订阅
一、 漏洞 CVE-2026-44663 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗ 尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
OpenEXR: Integer overflow in the HTJ2K decoder leads to heap-buffer-overflow
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.11, an integer overflow in ht_undo_impl() in src/lib/OpenEXRCore/internal_ht.cpp leads to a heap-buffer overflow when decoding a crafted HTJ2K-compressed EXR file. decode->channels[i].width (int32_t) is multiplied by bytes_per_element in 32-bit signed arithmetic. With large widths (e.g., >= 536870912 for FLOAT data), this overflows, producing a corrupted offset that is later used for pointer arithmetic and can cause a heap out-of-bounds write. The same unchecked multiplication pattern appears in two other HTJ2K paths (bytes-per-line accumulation and pixel-line pointer advancement). As with related CVE-2026-34378 through CVE-2026-34589 fixes in other codecs, validating only after the multiplication is too late because the value may already be overflowed. This issue has been fixed in version 3.4.12.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
整数溢出或超界折返
来源: 美国国家漏洞数据库 NVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| AcademySoftwareFoundation | openexr | >= 3.4.0, < 3.4.11 | - |
二、漏洞 CVE-2026-44663 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-44663 的情报信息
请登录查看更多情报信息。
CVE-2026-44663 补丁与修复 (1)
CVE-2026-44663 厂商安全公告 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-44663
暂无评论