CVE-2020-25709

7.5 HIGH 3% exploit odds Fix listed

What it is

A flaw was found in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed by OpenLDAP’s slapd server, to trigger an assertion failure. The highest threat from this vulnerability is to system availability.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 3.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-05-18 12:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-14 10:17 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.4% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-05-18 12:15 UTC
Last modified: 2026-10-14 10:17 UTC
Exploit probability: 3.4% · EPSS, next 30 days
Weakness: CWE-617
Record status: Modified

Affected

Openldap < 2.4.56
Debian Linux 9.0
Debian Linux 10.0
Apple Mac Os X < 10.14.6
Apple Mac Os X < 10.15.7
Apple Mac Os X 10.14.6
Apple Mac Os X 10.15.7
Apple macOS < 11.0.1

Attack profile CVSS 3.1 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-25709.md and follow it. Check whether this project is affected by CVE-2020-25709. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

· More options · Status badge

Download Square Reddit

Fix and advisories

References

NVD record · CVE.org record