How severe is CVE-2018-6959?

CVE-2018-6959 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6959 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6959?

CVE-2018-6959 affects Vmware Vrealize Automation. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6959?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-6959 published?

CVE-2018-6959 was published on 2018-04-13 and last updated on 2026-06-17.

CVE-2018-6959

CVE-2018-6959 is a critical-severity vulnerability in Vmware Vrealize Automation with a CVSS 3.x base score of 9.8. 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-384.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-384
Affected product: Vmware Vrealize Automation
Published: 2018-04-13
Last modified: 2026-06-17

Description

VMware vRealize Automation (vRA) prior to 7.4.0 contains a vulnerability in the handling of session IDs. Exploitation of this issue may lead to the hijacking of a valid vRA user's session.

Frequently asked questions

What is CVE-2018-6959?: VMware vRealize Automation (vRA) prior to 7.4.0 contains a vulnerability in the handling of session IDs. Exploitation of this issue may lead to the hijacking of a valid vRA user's session.
How severe is CVE-2018-6959?: CVE-2018-6959 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6959 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6959?: CVE-2018-6959 affects Vmware Vrealize Automation. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6959?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-6959 published?: CVE-2018-6959 was published on 2018-04-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vmware:vrealize_automation:*:*:*:*:*:*:*:*

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