CVE-2021-35497 | TIBCO FTL unvalidated SAN in client certificates

The FTL Server (tibftlserver) and Docker images containing tibftlserver components of TIBCO Software Inc.'s TIBCO ActiveSpaces - Community Edition, TIBCO ActiveSpaces - Developer Edition, TIBCO ActiveSpaces - Enterprise Edition, TIBCO FTL - Community Edition, TIBCO FTL - Developer Edition, TIBCO FTL - Enterprise Edition, TIBCO eFTL - Community Edition, TIBCO eFTL - Developer Edition, and TIBCO eFTL - Enterprise Edition contain a vulnerability that theoretically allows a non-administrative, authenticated FTL user to trick the affected components into creating illegitimate certificates. These maliciously generated certificates can be used to enable man-in-the-middle attacks or to escalate privileges so that the malicious user has administrative privileges. Affected releases are TIBCO Software Inc.'s TIBCO ActiveSpaces - Community Edition: versions 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.6.1, and 4.6.2, TIBCO ActiveSpaces - Developer Edition: versions 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.6.1, and 4.6.2, TIBCO ActiveSpaces - Enterprise Edition: versions 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.6.1, and 4.6.2, TIBCO FTL - Community Edition: versions 6.2.0, 6.3.0, 6.3.1, 6.4.0, 6.5.0, 6.6.0, 6.6.1, and 6.7.0, TIBCO FTL - Developer Edition: versions 6.2.0, 6.3.0, 6.3.1, 6.4.0, 6.5.0, 6.6.0, 6.6.1, and 6.7.0, TIBCO FTL - Enterprise Edition: versions 6.2.0, 6.3.0, 6.3.1, 6.4.0, 6.5.0, 6.6.0, 6.6.1, and 6.7.0, TIBCO eFTL - Community Edition: versions 6.2.0, 6.3.0, 6.3.1, 6.4.0, 6.5.0, 6.6.0, 6.6.1, and 6.7.0, TIBCO eFTL - Developer Edition: versions 6.2.0, 6.3.0, 6.3.1, 6.4.0, 6.5.0, 6.6.0, 6.6.1, and 6.7.0, and TIBCO eFTL - Enterprise Edition: versions 6.2.0, 6.3.0, 6.3.1, 6.4.0, 6.5.0, 6.6.0, 6.6.1, and 6.7.0.

Published: 2021-10-05 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-35497 is rated Moderate Risk (41.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.41%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-35497

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.16% 0.41% +0.24%
2 2025-03-19 0.09% 0.16% +0.07%
3 2023-03-07 — 0.09% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-35497

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.6 5.9 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.6 5.9 [email protected]
6.0 2.0 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 6.4 [email protected]

Weakness enumeration for CVE-2021-35497

Affected software / configurations for CVE-2021-35497

Vendor Product Version Raw CPE
tibco activespaces 4.3.0 cpe:2.3:a:tibco:activespaces:4.3.0:*:*:*:community:*:*:*
tibco activespaces 4.3.0 cpe:2.3:a:tibco:activespaces:4.3.0:*:*:*:developer:*:*:*
tibco activespaces 4.3.0 cpe:2.3:a:tibco:activespaces:4.3.0:*:*:*:enterprise:*:*:*
tibco activespaces 4.4.0 cpe:2.3:a:tibco:activespaces:4.4.0:*:*:*:community:*:*:*
tibco activespaces 4.4.0 cpe:2.3:a:tibco:activespaces:4.4.0:*:*:*:developer:*:*:*
tibco activespaces 4.4.0 cpe:2.3:a:tibco:activespaces:4.4.0:*:*:*:enterprise:*:*:*
tibco activespaces 4.5.0 cpe:2.3:a:tibco:activespaces:4.5.0:*:*:*:community:*:*:*
tibco activespaces 4.5.0 cpe:2.3:a:tibco:activespaces:4.5.0:*:*:*:developer:*:*:*
tibco activespaces 4.5.0 cpe:2.3:a:tibco:activespaces:4.5.0:*:*:*:enterprise:*:*:*
tibco activespaces 4.6.0 cpe:2.3:a:tibco:activespaces:4.6.0:*:*:*:community:*:*:*
tibco activespaces 4.6.0 cpe:2.3:a:tibco:activespaces:4.6.0:*:*:*:developer:*:*:*
tibco activespaces 4.6.0 cpe:2.3:a:tibco:activespaces:4.6.0:*:*:*:enterprise:*:*:*
tibco activespaces 4.6.1 cpe:2.3:a:tibco:activespaces:4.6.1:*:*:*:community:*:*:*
tibco activespaces 4.6.1 cpe:2.3:a:tibco:activespaces:4.6.1:*:*:*:developer:*:*:*
tibco activespaces 4.6.1 cpe:2.3:a:tibco:activespaces:4.6.1:*:*:*:enterprise:*:*:*
tibco activespaces 4.6.2 cpe:2.3:a:tibco:activespaces:4.6.2:*:*:*:community:*:*:*
tibco activespaces 4.6.2 cpe:2.3:a:tibco:activespaces:4.6.2:*:*:*:developer:*:*:*
tibco activespaces 4.6.2 cpe:2.3:a:tibco:activespaces:4.6.2:*:*:*:enterprise:*:*:*
tibco eftl 6.2.0 cpe:2.3:a:tibco:eftl:6.2.0:*:*:*:community:*:*:*
tibco eftl 6.2.0 cpe:2.3:a:tibco:eftl:6.2.0:*:*:*:developer:*:*:*
tibco eftl 6.2.0 cpe:2.3:a:tibco:eftl:6.2.0:*:*:*:enterprise:*:*:*
tibco eftl 6.3.0 cpe:2.3:a:tibco:eftl:6.3.0:*:*:*:community:*:*:*
tibco eftl 6.3.0 cpe:2.3:a:tibco:eftl:6.3.0:*:*:*:developer:*:*:*
tibco eftl 6.3.0 cpe:2.3:a:tibco:eftl:6.3.0:*:*:*:enterprise:*:*:*
tibco eftl 6.3.1 cpe:2.3:a:tibco:eftl:6.3.1:*:*:*:community:*:*:*
tibco eftl 6.3.1 cpe:2.3:a:tibco:eftl:6.3.1:*:*:*:developer:*:*:*
tibco eftl 6.3.1 cpe:2.3:a:tibco:eftl:6.3.1:*:*:*:enterprise:*:*:*
tibco eftl 6.4.0 cpe:2.3:a:tibco:eftl:6.4.0:*:*:*:community:*:*:*
tibco eftl 6.4.0 cpe:2.3:a:tibco:eftl:6.4.0:*:*:*:developer:*:*:*
tibco eftl 6.4.0 cpe:2.3:a:tibco:eftl:6.4.0:*:*:*:enterprise:*:*:*
tibco eftl 6.5.0 cpe:2.3:a:tibco:eftl:6.5.0:*:*:*:community:*:*:*
tibco eftl 6.5.0 cpe:2.3:a:tibco:eftl:6.5.0:*:*:*:developer:*:*:*
tibco eftl 6.5.0 cpe:2.3:a:tibco:eftl:6.5.0:*:*:*:enterprise:*:*:*
tibco eftl 6.6.0 cpe:2.3:a:tibco:eftl:6.6.0:*:*:*:community:*:*:*
tibco eftl 6.6.0 cpe:2.3:a:tibco:eftl:6.6.0:*:*:*:developer:*:*:*
tibco eftl 6.6.0 cpe:2.3:a:tibco:eftl:6.6.0:*:*:*:enterprise:*:*:*
tibco eftl 6.6.1 cpe:2.3:a:tibco:eftl:6.6.1:*:*:*:community:*:*:*
tibco eftl 6.6.1 cpe:2.3:a:tibco:eftl:6.6.1:*:*:*:developer:*:*:*
tibco eftl 6.6.1 cpe:2.3:a:tibco:eftl:6.6.1:*:*:*:enterprise:*:*:*
tibco eftl 6.7.0 cpe:2.3:a:tibco:eftl:6.7.0:*:*:*:community:*:*:*
tibco eftl 6.7.0 cpe:2.3:a:tibco:eftl:6.7.0:*:*:*:developer:*:*:*
tibco eftl 6.7.0 cpe:2.3:a:tibco:eftl:6.7.0:*:*:*:enterprise:*:*:*
tibco ftl 6.2.0 cpe:2.3:a:tibco:ftl:6.2.0:*:*:*:community:*:*:*
tibco ftl 6.2.0 cpe:2.3:a:tibco:ftl:6.2.0:*:*:*:developer:*:*:*
tibco ftl 6.2.0 cpe:2.3:a:tibco:ftl:6.2.0:*:*:*:enterprise:*:*:*
tibco ftl 6.3.0 cpe:2.3:a:tibco:ftl:6.3.0:*:*:*:community:*:*:*
tibco ftl 6.3.0 cpe:2.3:a:tibco:ftl:6.3.0:*:*:*:developer:*:*:*
tibco ftl 6.3.0 cpe:2.3:a:tibco:ftl:6.3.0:*:*:*:enterprise:*:*:*
tibco ftl 6.3.1 cpe:2.3:a:tibco:ftl:6.3.1:*:*:*:community:*:*:*
tibco ftl 6.3.1 cpe:2.3:a:tibco:ftl:6.3.1:*:*:*:developer:*:*:*
tibco ftl 6.3.1 cpe:2.3:a:tibco:ftl:6.3.1:*:*:*:enterprise:*:*:*
tibco ftl 6.4.0 cpe:2.3:a:tibco:ftl:6.4.0:*:*:*:community:*:*:*
tibco ftl 6.4.0 cpe:2.3:a:tibco:ftl:6.4.0:*:*:*:developer:*:*:*
tibco ftl 6.4.0 cpe:2.3:a:tibco:ftl:6.4.0:*:*:*:enterprise:*:*:*
tibco ftl 6.5.0 cpe:2.3:a:tibco:ftl:6.5.0:*:*:*:community:*:*:*
tibco ftl 6.5.0 cpe:2.3:a:tibco:ftl:6.5.0:*:*:*:developer:*:*:*
tibco ftl 6.5.0 cpe:2.3:a:tibco:ftl:6.5.0:*:*:*:enterprise:*:*:*
tibco ftl 6.6.0 cpe:2.3:a:tibco:ftl:6.6.0:*:*:*:community:*:*:*
tibco ftl 6.6.0 cpe:2.3:a:tibco:ftl:6.6.0:*:*:*:developer:*:*:*
tibco ftl 6.6.0 cpe:2.3:a:tibco:ftl:6.6.0:*:*:*:enterprise:*:*:*
tibco ftl 6.6.1 cpe:2.3:a:tibco:ftl:6.6.1:*:*:*:community:*:*:*
tibco ftl 6.6.1 cpe:2.3:a:tibco:ftl:6.6.1:*:*:*:developer:*:*:*
tibco ftl 6.6.1 cpe:2.3:a:tibco:ftl:6.6.1:*:*:*:enterprise:*:*:*
tibco ftl 6.7.0 cpe:2.3:a:tibco:ftl:6.7.0:*:*:*:community:*:*:*
tibco ftl 6.7.0 cpe:2.3:a:tibco:ftl:6.7.0:*:*:*:developer:*:*:*
tibco ftl 6.7.0 cpe:2.3:a:tibco:ftl:6.7.0:*:*:*:enterprise:*:*:*

References for CVE-2021-35497

cvelogic Threat Intelligence