CVE Watch12 de nov. de 2026

CVE-2026-124740

A flaw was found in BusyBox's udhcpc6 DHCPv6 client. A malicious server on the local network can trigger a use-after-free condition by respo

CVSS

4.3

Média

EPSS

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KEV

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Exploit Today

0-100

Publicado: 11 de nov. de 2026 · Última mod.: 12 de nov. de 2026 · CWE-416

EPSS · 30d

Ainda não há histórico EPSS suficiente.

Descrição técnica

A flaw was found in BusyBox's udhcpc6 DHCPv6 client. A malicious server on the local network can trigger a use-after-free condition by responding with a crafted Dynamic Host Configuration Protocol for IPv6 (DHCPv6) reply packet lacking usable address options. This issue causes the client to read stale heap memory, which can result in a Denial of Service (DoS) due to an application crash or disclose previously assigned network address data in subsequent discovery requests.

Referências oficiais

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———Use after free in the PostgreSQL dblink extension allows an object creator to execute arbitrary code as the operating system user running the database, via type conversion code that re-enters dblink and closes a connection whose results an outer dblink call is reading. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.6h CVE-2026-1201438.8 ALT

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———Use after free in PostgreSQL portal setup allows an object creator to execute arbitrary code as the operating system user running the database, via running user-defined code during planning or executor startup that closes the portal currently being prepared. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.3h CVE-2026-1163238.8 ALT

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