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CVE-2021-35498

30
FAUCET Score

CVE-2021-35498 is a critical authentication bypass vulnerability affecting the TIBCO EBX Web Server component in multiple versions of TIBCO EBX and TIBCO Product and Service Catalog. This flaw allows an attacker to authenticate successfully with an incorrect password under specific conditions. With a CVSS score of 9.8, it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the high FAUCET Risk Score of 78/100 indicates its potential severity.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.8.124CPE matchmatch criteria
cpe:2.3:a:tibco:ebx:*:*:*:*:*:*:*:*
>= 5.9.3, < 5.9.15CPE matchmatch criteria
cpe:2.3:a:tibco:ebx:*:*:*:*:*:*:*:*
>= 6.0.0, < 6.0.2CPE matchmatch criteria
cpe:2.3:a:tibco:ebx:*:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:tibco:product_and_service_catalog_powered_by_tibco_ebx:1.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.27%
Probability of exploitation in next 30 days
EPSS Percentile
66.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0127 is in the 53rd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

tibco.com / services/support/advisories
Vendor Advisory
tibco.com / support/advisories/2021/10/tibco-security-advisory-october-13-2021-tibco-ebx-2021-35498
Vendor Advisory