How severe is CVE-2021-28829?

CVE-2021-28829 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-28829 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28829?

CVE-2021-28829 primarily affects Tibco Administrator. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-28829?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-28829 published?

CVE-2021-28829 was published on 2021-04-20 and last updated on 2026-06-17.

CVE-2021-28829

CVE-2021-28829 is a medium-severity vulnerability in Tibco Administrator with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Tibco Administrator
Published: 2021-04-20
Last modified: 2026-06-17

Description

The Administration GUI component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, TIBCO Administrator - Enterprise Edition for z/Linux, and TIBCO Administrator - Enterprise Edition for z/Linux contains an easily exploitable vulnerability that allows a low privileged attacker with network access to execute a persistent CSV injection attack from the affected system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition: versions 5.11.0 and 5.11.1, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric: versions 5.11.0 and 5.11.1, TIBCO Administrator - Enterprise Edition for z/Linux: versions 5.10.2 and below, and TIBCO Administrator - Enterprise Edition for z/Linux: versions 5.11.0 and 5.11.1.

Frequently asked questions

What is CVE-2021-28829?: The Administration GUI component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, TIBCO Administrator - Enterprise Edition for z/Linux, and TIBCO Administrator - Enterprise Edition for z/Linux contains an easily exploitable vulnerability that allows a low privileged attacker with network access to execute a persistent CSV injection attack from the affected system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition: versions 5.11.0 and 5.11.1, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric: versions 5.11.0 and 5.11.1, TIBCO Administrator - Enterprise Edition for z/Linux: versions 5.10.2 and below, and TIBCO Administrator - Enterprise Edition for z/Linux: versions 5.11.0 and 5.11.1.
How severe is CVE-2021-28829?: CVE-2021-28829 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-28829 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28829?: CVE-2021-28829 primarily affects Tibco Administrator. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-28829?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-28829 published?: CVE-2021-28829 was published on 2021-04-20 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:tibco:administrator:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:tibco:administrator:*:*:*:*:enterprise:silver_fabric:*:*
cpe:2.3:a:tibco:administrator:*:*:*:*:enterprise:z\/linux:*:*
cpe:2.3:a:tibco:administrator:5.11.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:tibco:administrator:5.11.0:*:*:*:enterprise:silver_fabric:*:*
cpe:2.3:a:tibco:administrator:5.11.0:*:*:*:enterprise:z\/linux:*:*
cpe:2.3:a:tibco:administrator:5.11.1:*:*:*:enterprise:*:*:*
cpe:2.3:a:tibco:administrator:5.11.1:*:*:*:enterprise:silver_fabric:*:*
cpe:2.3:a:tibco:administrator:5.11.1:*:*:*:enterprise:z\/linux:*:*

More vulnerabilities in Tibco Administrator

CVE-2021-28827 — Critical (CVSS 9.6): The Administration GUI component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, TIBCO Administrator…
CVE-2018-5432 — High (CVSS 8.0): The TIBCO Administrator server component of of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, and…
CVE-2021-28828 — High (CVSS 7.6): The Administration GUI component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, TIBCO Administrator…
CVE-2018-5433 — Medium (CVSS 6.5): The TIBCO Administrator server component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, and TIBCO…
CVE-2010-0683 — Medium (CVSS 6.0): Unspecified vulnerability in TIBRepoServer5.jar in TIBCO Administrator 5.4.0 through 5.6.0, when JMS transport is used,…

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