Is CVE-2021-35498 actively exploited?

No active exploitation of CVE-2021-35498 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-35498 be exploited remotely?

Yes. CVE-2021-35498 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-35498?

CVE-2021-35498 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-35498

CRITICAL

CVE-2021-35498

CWE-521Published: October 13, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The TIBCO EBX Web Server component of TIBCO Software Inc.'s TIBCO EBX, TIBCO EBX, TIBCO EBX, and TIBCO Product and Service Catalog powered by TIBCO EBX contains a vulnerability that under certain specific conditions allows an attacker to enter a password other than the legitimate password and it will be accepted as valid. Affected releases are TIBCO Software Inc.'s TIBCO EBX: versions 5.8.123 and below, TIBCO EBX: versions 5.9.3, 5.9.4, 5.9.5, 5.9.6, 5.9.7, 5.9.8, 5.9.9, 5.9.10, 5.9.11, 5.9.12, 5.9.13, and 5.9.14, TIBCO EBX: versions 6.0.0 and 6.0.1, and TIBCO Product and Service Catalog powered by TIBCO EBX: version 1.0.0.

NVD Source

Technical Analysis

CVE-2021-35498 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.