How severe is CVE-2019-5523?

CVE-2019-5523 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-2019-5523 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5523?

CVE-2019-5523 affects Vmware Vcloud Director. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5523?

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-2019-5523 published?

CVE-2019-5523 was published on 2019-04-01 and last updated on 2026-06-17.

CVE-2019-5523

CVE-2019-5523 is a critical-severity vulnerability in Vmware Vcloud Director 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: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-384
Affected product: Vmware Vcloud Director
Published: 2019-04-01
Last modified: 2026-06-17

Description

VMware vCloud Director for Service Providers 9.5.x prior to 9.5.0.3 update resolves a Remote Session Hijack vulnerability in the Tenant and Provider Portals. Successful exploitation of this issue may allow a malicious actor to access the Tenant or Provider Portals by impersonating a currently logged in session.

Frequently asked questions

What is CVE-2019-5523?: VMware vCloud Director for Service Providers 9.5.x prior to 9.5.0.3 update resolves a Remote Session Hijack vulnerability in the Tenant and Provider Portals. Successful exploitation of this issue may allow a malicious actor to access the Tenant or Provider Portals by impersonating a currently logged in session.
How severe is CVE-2019-5523?: CVE-2019-5523 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-2019-5523 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5523?: CVE-2019-5523 affects Vmware Vcloud Director. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5523?: 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-2019-5523 published?: CVE-2019-5523 was published on 2019-04-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vmware:vcloud_director:*:*:*:*:*:*:*:*

More vulnerabilities in Vmware Vcloud Director

CVE-2020-3956 — High (CVSS 8.8): VMware Cloud Director 10.0.x before 10.0.0.2, 9.7.0.x before 9.7.0.5, 9.5.0.x before 9.5.0.6, and 9.1.0.x before…
CVE-2016-2076 — High (CVSS 7.6): Client Integration Plugin (CIP) in VMware vCenter Server 5.5 U3a, U3b, and U3c and 6.0 before U2; vCloud Director…
CVE-2022-22966 — High (CVSS 7.2): An authenticated, high privileged malicious actor with network access to the VMware Cloud Director tenant or provider…
CVE-2014-1211 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in VMware vCloud Director 5.1.x before 5.1.3 allows remote attackers to…

All CVEs affecting Vmware Vcloud Director →

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 →