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Fencer Intel
medium 6.5

CVE-2026-117548 json

389-ds-base: 389-ds-base: null pointer dereference via modifydn using an attribute's schema alias name causes denial of service

published 11d ago modified 4d ago also EUVD-2026-112637

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as "commonName") instead of its canonical name (such as "cn") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-117548 updated cvss 6.5

389-ds-base: 389-ds-base: NULL pointer dereference via ModifyDN using an attribute's schema alias name causes denial of service

  • Red Hat Directory Server 11 389-ds-base 1.4.3.39-29.module+el8dsrv+25089+418ba535 Red Hat Directory Server 12 389-ds-base 2.8.0-7.module+el9dsrv+24844+8988a132 Red Hat Directory Server 13 389-ds-base 3.2.0-7.el10dsrv
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux 6 389-ds-base, 389-ds-base-libs, 389-ds-base 3.2.0-7.el10dsrv
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 389-ds-base, 389-ds-base-libs, 389-ds-base-snmp, 389-ds-base 3.2.0-7.el10dsrv Red Hat Enterprise Linux 8 389-ds-base, cockpit-389-ds, python3-lib389, 389-ds-base-libs, 389-ds-base-snmp, 389-ds-base-legacy-tools Red Hat Enterprise Linux 9 389-ds-base, python3-lib389, 389-ds-base-libs, 389-ds-base-snmp, 389-ds-base 3.2.0-7.el10dsrv Red Hat Enterprise Linux 10 389-ds-base 3.2.0-7.el10dsrv
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
6d ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Directory Server 11
  • Red Hat Red Hat Directory Server 12
  • Red Hat Red Hat Directory Server 13
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.