CVE-2019-5535

VMware Workstation and Fusion contain a network denial-of-service vulnerability due to improper handling of certain IPv6 packets. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 4.7.

Published: 2019-10-10 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2019-5535 is rated Low Risk (32.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.48%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-5535

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.48% +0.42%
2 2023-03-07 0.89% 0.06% -0.83%
3 2022-04-01 0.89%

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-5535

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
2.8 1.4 [email protected]
2.9 2.0 LOW
AV:A/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
5.5 2.9 [email protected]

Weakness enumeration for CVE-2019-5535

Affected software / configurations for CVE-2019-5535

Vendor Product Version Raw CPE
vmware fusion >= 11.0.0, < 11.5.0 cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
vmware workstation >= 15.0.0, < 15.5.0 cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*

References for CVE-2019-5535

cvelogic Threat Intelligence