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CVE-2026-112274— libtins through 4.6 Out-of-Bounds Read via DNS::soa_record::init

Quick assessment

Affected
libtins libtins
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.

libtins 4.6 及更早版本中存在一个越界读取漏洞，位于 DNS::soa_record::init 函数中。该漏洞允许远程攻击者通过提供缺少空字符（NUL）终止符的 SOA 数据，读取超出缓冲区边界的内容。攻击者可以向使用缓冲区构造函数的应用程序注入未包含零字节的原始 SOA RDATA，导致 strlen 函数越过堆缓冲区，进而可能引发程序崩溃。

CVSS 3.7 · Low

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
libtins libtins ≤ 4.6 affected
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I. Basic Information for CVE-2026-112274

Vulnerability Information
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Vulnerability Title
libtins through 4.6 Out-of-Bounds Read via DNS::soa_record::init
Source: CVE Program / CVE List V5
Vulnerability Description
libtins through 4.6 contains an out-of-bounds read vulnerability in DNS::soa_record::init that allows remote attackers to read past buffer bounds by supplying SOA data lacking NUL terminators. Attackers can feed raw SOA RDATA without a zero byte to applications using the buffer constructor, causing strlen to overrun the heap buffer and possibly crash.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
libtins libtins 0 ~ 4.6 -

II. Public POCs for CVE-2026-112274

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III. Intelligence Information for CVE-2026-112274

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Patches & Fixes for CVE-2026-112274 (1)

Vendor Advisories for CVE-2026-112274 (1)

Proof of Concept for CVE-2026-112274 (1)

Vendor Pages for CVE-2026-112274 (1)

IV. Related Vulnerabilities

Same product: libtins
Same vendor: libtins
Same weakness: CWE-125

V. Comments for CVE-2026-112274

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