CVE Watch9 jul 2026

CVE-2026-14940

A heap-buffer-overflow flaw was found in 389 Directory Server (389-ds-base). When normalizing a Distinguished Name (DN) that contains a lega

CVSS

5.3

Medio

EPSS

0.3%

p21

KEV

—

Exploit Today

0-100

Publicado: 7 jul 2026 · Última mod.: 9 jul 2026 · CWE-122

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-07-082026-07-21

Descripción técnica

A heap-buffer-overflow flaw was found in 389 Directory Server (389-ds-base). When normalizing a Distinguished Name (DN) that contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name (RDN), the server can write past the end of a heap allocation while sorting RDN attribute-value pairs. An unauthenticated remote attacker can trigger this condition by sending an LDAP operation whose DN reaches the DN normalization routine, such as a search with a crafted base DN. This can corrupt heap memory and may cause denial of service.

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