CVE-2026-56374— ImageMagick - Heap Buffer Overflow in FTXT Encoder via format Parameter
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ImageMagick | ImageMagick | < 7.1.2-19 | affected |
7.1.2-19 | unaffected |
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I. Basic Information for CVE-2026-56374
Vulnerability Information
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Vulnerability Title
ImageMagick - Heap Buffer Overflow in FTXT Encoder via format Parameter
Source: NVD (National Vulnerability Database)
Vulnerability Description
ImageMagick before 7.1.2-19 contains a heap buffer overflow vulnerability in the FTXT encoder due to missing boundary checks when parsing ftxt:format. Remote attackers can trigger an out of bounds read by crafting malicious FTXT image files to cause denial of service or information disclosure.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
ImageMagick 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ImageMagick是ImageMagick团队开源的一套开源的图像处理软件。可读取、转换或写入多种格式的图片。 ImageMagick 7.1.2-19之前版本存在缓冲区错误漏洞，该漏洞源于FTXT编码器在解析ftxt:format时缺少边界检查，可能导致远程攻击者通过特制FTXT图像文件触发越界读取，从而造成拒绝服务或信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ImageMagick | ImageMagick | 0 ~ 7.1.2-19 | - |
II. Public POCs for CVE-2026-56374
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-56374 (2)
IV. Related Vulnerabilities
Same product: ImageMagick
- CVE-2026-61870
ImageMagick before 7.1.2-26 Memory Leak via VIFF Encoder - CVE-2026-61858
ImageMagick before 7.1.2-26 Policy Bypass via APNG encoder - CVE-2026-61861
ImageMagick before 7.1.2-26 Use-After-Free in FormatMagickCa - CVE-2026-61857
ImageMagick before 7.1.2-26 Heap Use-After-Free via XMP - CVE-2026-61465
ImageMagick before 7.1.2-26 Memory Allocation Policy Bypass
Same vendor: ImageMagick
- CVE-2026-61870
ImageMagick before 7.1.2-26 Memory Leak via VIFF Encoder - CVE-2026-61858
ImageMagick before 7.1.2-26 Policy Bypass via APNG encoder - CVE-2026-61861
ImageMagick before 7.1.2-26 Use-After-Free in FormatMagickCa - CVE-2026-61857
ImageMagick before 7.1.2-26 Heap Use-After-Free via XMP - CVE-2026-61465
ImageMagick before 7.1.2-26 Memory Allocation Policy Bypass
Same weakness: CWE-125
- CVE-2026-57157
Out-of-bounds read in the camera device enumerator server (r - CVE-2026-57158
FreeRDP planar_decompress_plane_rle_only: heap OOB read — in - CVE-2026-14461
Out-of-bound read in mtr - CVE-2026-40454
Apache IoTDB C++ client: Out-of-bounds reads in C++ client T - CVE-2026-11404
Cesanta Mongoose before 7.22 Out-of-Bounds Read in MG_TLS_BU
V. Comments for CVE-2026-56374
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