SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-13565

An issue was discovered in OpenLDAP 2.x before 2.4.48.

HIGH 7.5EPSS 5.01%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (5.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
5.01% probability · 92th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
openldap/openldap · canonical/ubuntu linux · debian/debian linux · opensuse/leap · f5/traffix signaling delivery controller · apple/mac os x · oracle/blockchain platform · oracle/zfs storage appliance kit · oracle/solaris
Source
cve@mitre.org
EPSS trend
0%5%10%27 October 2026: 5.01%27 October 202627 October 2026

EPSS 5.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.