Is CVE-2020-5426 actively exploited?

No active exploitation of CVE-2020-5426 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-5426 be exploited remotely?

Yes. CVE-2020-5426 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-5426?

CVE-2020-5426 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-5426

CWE-319Published: November 11, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Scheduler for TAS prior to version 1.4.0 was permitting plaintext transmission of UAA client token by sending it over a non-TLS connection. This also depended on the configuration of the MySQL server which is used to cache a UAA client token used by the service. If intercepted the token can give an attacker admin level access in the cloud controller.

NVD Source

Technical Analysis

CVE-2020-5426 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.