CVE-2026-16560CWE-1220

389-ds-base: 389-ds-base: heap-buffer-overflow in rdn_av_swap on quoted multivalued rdn

Medium · published July 22, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
32.6
In the wild
Unconfirmed
What it is

A heap-buffer-overflow flaw was found in Directory Server (389-ds-base). When a DN contains a legacy-quoted value, the server won't close the heap allocation allowing another call to refer to the same memory pointer causing a denial of service or an arbitrary memory write operation.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00396 · 32.6th percentile
Weakness
CWE-1220 · Insufficient Granularity of Access Control
Published
2026-07-22T12:51Z
EPSS history
Timeline
  • 22 JUL 12:51Z
    389-ds-base: 389-ds-base: heap-buffer-overflow in rdn_av_swap on quoted multivalued rdn
    cvelistv5