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% (79th 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% (79th 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% (79th 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:*:*:*:*:*:*:*:*

More vulnerabilities in Vmware Vrealize Automation

CVE-2022-22972 — Critical (CVSS 9.8): VMware Workspace ONE Access, Identity Manager and vRealize Automation contain an authentication bypass vulnerability…
CVE-2022-22956 — Critical (CVSS 9.8): VMware Workspace ONE Access has two authentication bypass vulnerabilities (CVE-2022-22955 & CVE-2022-22956) in the…
CVE-2022-22955 — Critical (CVSS 9.8): VMware Workspace ONE Access has two authentication bypass vulnerabilities (CVE-2022-22955 & CVE-2022-22956) in the…
CVE-2022-22954 — Critical (CVSS 9.8): VMware Workspace ONE Access and Identity Manager contain a remote code execution vulnerability due to server-side…
CVE-2017-4947 — Critical (CVSS 9.8): VMware vRealize Automation (7.3 and 7.2) and vSphere Integrated Containers (1.x before 1.3) contain a deserialization…
CVE-2016-5336 — Critical (CVSS 9.8): VMware vRealize Automation 7.0.x before 7.1 allows remote attackers to execute arbitrary code via unspecified vectors.

All CVEs affecting Vmware Vrealize Automation →

Other CWE-384 (Session Fixation) vulnerabilities

CVE-2024-11317 — Critical (CVSS 10.0): Session Fixation vulnerabilities allow an attacker to fix a users session identifier before login providing an…
CVE-2024-38513 — Critical (CVSS 10.0): Fiber is an Express-inspired web framework written in Go A vulnerability present in versions prior to 2.52.5 is a…
CVE-2021-20151 — Critical (CVSS 10.0): Trendnet AC2600 TEW-827DRU version 2.08B01 contains a flaw in the session management for the device. The router's…
CVE-2025-67446 — Critical (CVSS 9.8): Improper Authentication (Authentication Bypass) exists in Neterbit NW-431F Router 20241014-IR03 and before. The router…
CVE-2026-25101 — Critical (CVSS 9.8): Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same…
CVE-2026-24352 — Critical (CVSS 9.8): PluXml CMS allows a user's session identifier to be set before authentication. The value of this session ID stays the…

Browse all CWE-384 (Session Fixation) vulnerabilities →