CVE-2025-64486— calibre is vulnerable to arbitrary code execution when opening FB2 files
Quick assessment
Affected
kovidgoyal calibre
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Calibre是印度Kovid Goyal个人开发者的一个开源免费的全能电子书阅读管理与格式转换工具。 Calibre 8.13.0及之前版本存在安全漏洞，该漏洞源于处理FB2文件中的二进制资源时未验证文件名，可能导致任意文件写入和代码执行。
Possible ATT&CK Techniques 2 AI
T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-64486
Vulnerability Information
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Vulnerability Title
calibre is vulnerable to arbitrary code execution when opening FB2 files
Source: CVE Program / CVE List V5
Vulnerability Description
calibre is an e-book manager. In versions 8.13.0 and prior, calibre does not validate filenames when handling binary assets in FB2 files, allowing an attacker to write arbitrary files on the filesystem when viewing or converting a malicious FictionBook file. This can be leveraged to achieve arbitrary code execution. This issue is fixed in version 8.14.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Calibre 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Calibre是印度Kovid Goyal个人开发者的一个开源免费的全能电子书阅读管理与格式转换工具。 Calibre 8.13.0及之前版本存在安全漏洞，该漏洞源于处理FB2文件中的二进制资源时未验证文件名，可能导致任意文件写入和代码执行。
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 |
|---|---|---|---|---|
| kovidgoyal | calibre | < 8.14.0 | - |
|
II. Public POCs for CVE-2025-64486
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2025-64486
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