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CVE-2026-123199— eBook-speaker through 6.2.0 Stack-based Buffer Overflow via element name attribute

Quick assessment

Affected
book-readers eBook-speaker
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.

eBook-speaker 6.1.0 至 6.2.0 版本在 文件的 函数中存在栈缓冲区溢出漏洞。该漏洞源于对元素名称属性（name attribute）执行了无边界限制的 操作。攻击者可构造包含 511 个或更多字符名称属性的 EPUB 或 DAISY 电子书，在用户打开该文件时导致栈数据被破坏，进而引发阅读器崩溃。

CVSS 5.5 · Medium

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
book-readers eBook-speaker 6.1.0≤ 6.2.0 affected
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I. Basic Information for CVE-2026-123199

Vulnerability Information
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Vulnerability Title
eBook-speaker through 6.2.0 Stack-based Buffer Overflow via element name attribute
Source: CVE Program / CVE List V5
Vulnerability Description
eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
book-readers eBook-speaker 6.1.0 ~ 6.2.0 -

II. Public POCs for CVE-2026-123199

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-123199

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Other References for CVE-2026-123199 (3)

IV. Related Vulnerabilities

Same weakness: CWE-120