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CVE-2026-107570— Use of Out-of-range Pointer Offset in mutt

Quick assessment

Affected
mutt mutt
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.

通过精心构造的 Content-Type 头部，在 convert_file_from_to() 函数中存在堆溢出写入漏洞，当电子邮件被用作模板时，攻击者可利用该漏洞实现越界写入。

CVSS 2.5 · Low

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
mutt mutt ≤ 2.4.2 affected
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I. Basic Information for CVE-2026-107570

Vulnerability Information
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Vulnerability Title
Use of Out-of-range Pointer Offset in mutt
Source: CVE Program / CVE List V5
Vulnerability Description
heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write when email is used as a template.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用越界的指针偏移
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mutt mutt 0 ~ 2.4.2 -

II. Public POCs for CVE-2026-107570

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-107570

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Proof of Concept for CVE-2026-107570 (1)

IV. Related Vulnerabilities

Same product: mutt
Same vendor: mutt
Same weakness: CWE-823

V. Comments for CVE-2026-107570

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