CVE-2024-5953 | 389-ds-base: malformed userpassword hash may cause denial of service

A denial of service vulnerability was found in the 389-ds-base LDAP server. This issue may allow an authenticated user to cause a server denial of service while attempting to log in with a user with a malformed hash in their password.

Published: 2024-06-18 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-5953 is rated Low Risk (31.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.09%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-5953

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.42% 0.09% -0.33%
2 2025-11-18 0.11% 0.42% +0.30%
3 2025-07-27 — 0.11% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-5953

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.7 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.1 3.6 [email protected]

Weakness enumeration for CVE-2024-5953

OS Trackers for CVE-2024-5953

vendor priority summary link
debian not yet assigned CVE-2024-5953 not yet assigned priority: Debian including 1 source packages (389-ds-base), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2024-5953
redhat medium — https://access.redhat.com/security/cve/CVE-2024-5953
suse medium CVE-2024-5953 severity moderate: SUSE including 53 source package names (2.2-47.2:389-ds-2.2.10~git2.345056d3-150600.8.7.2, 2.2-47.2:lib389-2.2.10~git2.345056d3-150600.8.7.2, …), 113 product×package rows across 26 product lines (Container suse/389-ds, SUSE Enterprise Storage 7.1, … (26 product lines)): Fixed 97, Known Not Affected 16. https://www.suse.com/security/cve/CVE-2024-5953/
ubuntu medium CVE-2024-5953 medium priority: Ubuntu including 1 source packages (389-ds-base), 10 status rows across 10 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, upstream, xenial): needs-triage 7, ignored 3. https://ubuntu.com/security/CVE-2024-5953

Affected software / configurations for CVE-2024-5953

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2024-5953

cvelogic Threat Intelligence