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Vulnerabilities

Vulnerability · CVE-2023-2953

A vulnerability was found in openldap.

Published May 30, 2023 · catalog updated Oct 14, 2026 · A vulnerability was found

Check if you run it

No confirmed exploitation is on record for CVE-2023-2953. EPSS is 1.98%. Act only if a listed version of A vulnerability was found 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 vulnerability was found).
  • 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
1.98%
Remediation
Advisory link
Affected products
cpe apple/macos · cpe netapp/active iq unified manager · cpe netapp/clustered data ontap · cpe netapp/h300s firmware · cpe netapp/h410s firmware · cpe netapp/h500s firmware

A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.

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 apple/macosversion unspecified
  • cpe netapp/active iq unified managerversion unspecified
  • cpe netapp/clustered data ontapversion unspecified
  • cpe netapp/h300s firmwareversion unspecified
  • cpe netapp/h410s firmwareversion unspecified
  • cpe netapp/h500s firmwareversion unspecified
  • cpe netapp/h700s firmwareversion unspecified
  • cpe openldap/openldap2.4
  • cpe redhat/enterprise linux8.0
  • cpe redhat/enterprise linux9.0

How to fix CVE-2023-2953

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-2023-2953. EPSS is 1.98%. Act only if a listed version of A vulnerability was found is installed.

Which versions are affected?

Compare what you have installed with redhat/enterprise linux 8.0; redhat/enterprise linux 9.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-476: NULL Pointer Dereference. EPSS 1.98%. 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.

  1. May 30, 2023 · NIST NVD

    Detected

    A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.

  2. Oct 14, 2026 · NIST NVD

    Updated

    A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.

Sources

  • CVE.orgVulnerability recordCVE-2023-2953

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-2953

    30-day exploitation probability 2.0%

    first.org
  • NIST NVDVulnerability recordCVE-2023-2953

    A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.

    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.