How severe is CVE-2018-5434?

CVE-2018-5434 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-5434 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5434?

CVE-2018-5434 primarily affects Tibco Runtime Agent. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-5434?

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

When was CVE-2018-5434 published?

CVE-2018-5434 was published on 2018-06-13 and last updated on 2026-06-17.

CVE-2018-5434

CVE-2018-5434 is a medium-severity vulnerability in Tibco Runtime Agent with a CVSS 3.x base score of 5.8. 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-611.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Tibco Runtime Agent
Published: 2018-06-13
Last modified: 2026-06-17

Description

The TIBCO Designer component of TIBCO Software Inc.'s TIBCO Runtime Agent, and TIBCO Runtime Agent for z/Linux contains vulnerabilities wherein a malicious user could perform XML external entity expansion (XXE) attacks to disclose host machine information. Affected releases are TIBCO Software Inc.'s TIBCO Runtime Agent: versions up to and including 5.10.0, and TIBCO Runtime Agent for z/Linux: versions up to and including 5.9.1.

Frequently asked questions

What is CVE-2018-5434?: The TIBCO Designer component of TIBCO Software Inc.'s TIBCO Runtime Agent, and TIBCO Runtime Agent for z/Linux contains vulnerabilities wherein a malicious user could perform XML external entity expansion (XXE) attacks to disclose host machine information. Affected releases are TIBCO Software Inc.'s TIBCO Runtime Agent: versions up to and including 5.10.0, and TIBCO Runtime Agent for z/Linux: versions up to and including 5.9.1.
How severe is CVE-2018-5434?: CVE-2018-5434 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-5434 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5434?: CVE-2018-5434 primarily affects Tibco Runtime Agent. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-5434?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-5434 published?: CVE-2018-5434 was published on 2018-06-13 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:tibco:runtime_agent:*:*:*:*:*:linux_kernel:*:*
cpe:2.3:a:tibco:runtime_agent:*:*:*:*:*:*:*:*

More vulnerabilities in Tibco Runtime Agent

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CVE-2021-28827 — Critical (CVSS 9.6): The Administration GUI component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, TIBCO Administrator…
CVE-2008-1703 — Critical (CVSS 9.3): Multiple buffer overflows in TIBCO Software Rendezvous before 8.1.0, as used in multiple TIBCO products, allow remote…
CVE-2006-2830 — High (CVSS 7.5): Buffer overflow in TIBCO Rendezvous before 7.5.1, TIBCO Runtime Agent (TRA) before 5.4, and Hawk before 4.6.1 allows…
CVE-2023-26219 — High (CVSS 7.4): The Hawk Console and Hawk Agent components of TIBCO Software Inc.'s TIBCO Hawk, TIBCO Hawk Distribution for TIBCO…
CVE-2011-0649 — High (CVSS 7.2): Multiple unspecified vulnerabilities in TIBCO Rendezvous 8.2.1 through 8.3.0, Enterprise Message Service (EMS) 5.1.0…

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