CVE-2020-36227
A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.
Published Jan 26, 2021 · updated Oct 14, 2026 · openldap openldap
A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jan 26, 2021 · NIST NVD
Detected
A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.
Oct 14, 2026 · NIST NVD
Updated
A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.
Affected
- cpe apple/macosversion unspecified
- cpe debian/debian linux10.0
- cpe debian/debian linux9.0
- cpe openldap/openldapversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2020-36227
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2020-36227
30-day exploitation probability 77.2%
first.org - NIST NVDVulnerability recordCVE-2020-36227
A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.
nvd.nist.gov