Vulnerability · CVE-2020-25692
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs.
Published Dec 8, 2020 · catalog updated Oct 14, 2026 · A NULL pointer dereference
Check if you run it
No confirmed exploitation is on record for CVE-2020-25692. EPSS is 3.15%. Act only if a listed version of A NULL pointer dereference is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (A NULL pointer dereference).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 3.15%
- Remediation
- Advisory link
- Affected products
- cpe netapp/cloud backup · cpe netapp/solidfire baseboard management controller firmware · cpe openldap/openldap · cpe redhat/enterprise linux
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe netapp/cloud backupversion unspecified
- cpe netapp/solidfire baseboard management controller firmwareversion unspecified
- cpe openldap/openldapversion unspecified
- cpe redhat/enterprise linux5.0
- cpe redhat/enterprise linux6.0
- cpe redhat/enterprise linux7.0
How to fix CVE-2020-25692
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2020-25692. EPSS is 3.15%. Act only if a listed version of A NULL pointer dereference is installed.
Which versions are affected?
Compare what you have installed with redhat/enterprise linux 5.0; redhat/enterprise linux 6.0; redhat/enterprise linux 7.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-476: NULL Pointer Dereference. EPSS 3.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
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.
Dec 8, 2020 · NIST NVD
Detected
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
Oct 14, 2026 · NIST NVD
Updated
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
Sources
- CVE.orgVulnerability recordCVE-2020-25692
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2020-25692
30-day exploitation probability 3.1%
first.org - NIST NVDVulnerability recordCVE-2020-25692
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.