dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-co…

高危 CVSS 7.3

CVECVE-2026-2291

首次发现2026-07-20 22:15 UTC

披露时间2026-05-11 18:16 UTC

最后更新2026-07-20 22:15 UTC

通道状态auto

摘要

dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-controlled IP address, or to cause a DoS.

中文摘要建设中，暂以英文摘要呈现（DR-003 v2）。

深度研判 · 自动通道

该漏洞尚未生成深度研判报告（DR-003 v2 AI pipeline 建设中）。

Lint 边界警告 (2)

以下是本次研判 lint 阶段发现的非阻塞性警告（如引用 URL 未在白名单内）。这些不影响漏洞条目可用性，仅为透明度披露（参 DR-002）。

REF_URL_NOT_ALLOWLISTED url not in allowlist: https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html
REF_URL_NOT_ALLOWLISTED url not in allowlist: https://thekelleys.org.uk/dnsmasq/CVE/

dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-co…

摘要

深度研判 · 自动通道

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