CVE-2021-35498

Q: Is CVE-2021-35498 being actively exploited?

Not that we know of. CVE-2021-35498 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.3% is the estimated probability that it will be exploited in the next 30 days. That is higher than 69% of all scored CVEs.

Q: How severe is CVE-2021-35498?

CVE-2021-35498 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-35498 affect?

Published advisories record a fix for ebx (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICAL

9.8

CVSS v3

NVD

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.

CWE-521

How to fix

Remediation Available

ebxNVD

Affected:>= 6.0.0, < 6.0.2Fixed in:6.0.2CVE-2021-35498derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.31%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Vendor Advisory2

Related Vulnerabilities

Other CWE-521 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-17444	Critical	9.8	69%	-	Fix
CVE-2012-2441	High	8.5	8.6%	-	Fix
CVE-2017-3186	Critical	9.8	6.1%	-	-
CVE-2019-18988	High	7.0	4.7%	KEV	-
CVE-2018-1000134	Critical	9.8	4.7%	-	-
CVE-2017-6339	Medium	6.5	4.1%	-	-

Common questions

How do I fix CVE-2021-35498?

Upgrade ebx to 6.0.2 or later.

Is CVE-2021-35498 being actively exploited?

Not that we know of. CVE-2021-35498 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.3% is the estimated probability that it will be exploited in the next 30 days. That is higher than 69% of all scored CVEs.

How severe is CVE-2021-35498?

CVE-2021-35498 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-35498 affect?

Published advisories record a fix for ebx (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.