Is CVE-2026-35563 actively exploited?

No active exploitation of CVE-2026-35563 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-35563 be exploited remotely?

Yes. CVE-2026-35563 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-35563?

CVE-2026-35563 has a CVSS score of 8.5 (HIGH).

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HIGH

CVE-2026-35563

CWE-297Published: June 1, 2026· Updated: Jun 3, 2026

8.5

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:6.7th

Official Description

It was identified that the LDAP client implementation in version 2.1.7 does not verify if the server certificate matches the intended LDAP

hostname. While the underlying code validates the certificate chain

against a trusted authority, the absence of endpoint identification

allows a valid certificate issued for an entirely unrelated host to be

improperly accepted. This oversight leaves the connection highly

vulnerable to server impersonation and complete connection compromise.

The

root cause of this vulnerability lies in the incomplete TLS server

identity verification within the LDAP client implementation.

The attacker requires MITM capability on the network to exploit this vulnerability. This attacker must be able to present a certificate trusted by the client's configured trust store.

The hostname verification has been enforced in the new version of the LDAP API

NVD Source

Technical Analysis

CVE-2026-35563 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.5.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.