Heap-based Buffer Overflow Affecting 389ds/389-ds-base package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Jul 2026
- disclosed7 Jul 2026
- creditUnknown
Introduced: 7 Jul 2026
CVE-2026-14940 (opens in a new tab)How to fix?
There is no fixed version for 389ds/389-ds-base.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the DN normalization process when handling a crafted legacy-quoted multivalued Relative Distinguished Name (RDN). An attacker can corrupt heap memory and potentially cause service disruption by sending a malformed DN in an LDAP operation such as search, bind, add, or modify. This is only exploitable if the server does not immediately reject the malformed DN and the heap corruption leads to process instability, which may be more reliably observed when heap debugging is enabled or depending on specific memory allocator activity.