CVE-2026-9064
Essential information
- Published
- 20/05/2026 10:16
- Modified
- 20/05/2026 14:02
- Author
- —
- Creator
- —
- CVSS
- 7.5 HIGH (v3.1)
- CISA KEV
- No
- CWE
- CWE-770
- CVSS vector
-
—
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H—
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- LOW
- Privileges required
- NONE
- User interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality impact
- NONE
- Integrity impact
- NONE
- Availability impact
- HIGH
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Attack requirements
- —
- Privileges required
- —
- User interaction
- —
- Confidentiality (V)
- —
- Confidentiality (S)
- —
- Integrity (V)
- —
- Integrity (S)
- —
- Availability (V)
- —
- Availability (S)
- —
- Exploit maturity
- —
Description
A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() function in the LDAP server does not enforce an upper bound on the number of controls per LDAP message. A remote, unauthenticated attacker can send a specially crafted LDAP request containing hundreds of thousands of minimal controls within the default maximum BER message size (2 MB), causing excessive CPU consumption and heap allocation on the server. Under concurrent exploitation, this leads to significant latency degradation, worker thread starvation, or out-of-memory termination, resulting in a denial of service.
NVD status
- Status
- Modified — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- nist-nvd-api
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| redhat / directory server | cpe:2.3:a:redhat:directory_server:11.0:*:*:*:*:*:*:* |
| redhat / directory server | cpe:2.3:a:redhat:directory_server:12.0:*:*:*:*:*:*:* |
| redhat / directory server | cpe:2.3:a:redhat:directory_server:13.0:*:*:*:*:*:*:* |
| redhat / 389 directory server | cpe:2.3:o:redhat:389_directory_server:-:*:*:*:*:*:*:* |
| redhat / enterprise linux | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* |
| redhat / enterprise linux | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* |
| redhat / enterprise linux | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| redhat / enterprise linux | cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
| redhat / enterprise linux | cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* |