Is CVE-2021-20113 actively exploited?

No active exploitation of CVE-2021-20113 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-20113 be exploited remotely?

Yes. CVE-2021-20113 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-20113?

CVE-2021-20113 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2021-20113

CWE-203Published: July 30, 2021· Updated: Jun 17, 2026

5.3

CVSS v3.1

Official Description

An exposure of sensitive information vulnerability exists in TCExam <= 14.8.1. If a password reset request was made for an email address that was not registered with a user then we would be presented with an ‘unknown email’ error. If an email is given that is registered with a user then this error will not appear. A malicious actor could abuse this to enumerate the email addresses of

NVD Source

Technical Analysis

CVE-2021-20113 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.