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CVE-2018-6959

31
FAUCET Score

CVE-2018-6959 is a critical session hijacking vulnerability affecting VMware vRealize Automation (vRA) versions prior to 7.4.0, stemming from improper handling of session IDs. With a CVSS score of 9.8, it allows unauthenticated attackers to remotely hijack a valid user's session, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.4.0CPE matchmatch criteria
cpe:2.3:a:vmware:vrealize_automation:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.07%
Probability of exploitation in next 30 days
EPSS Percentile
79.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0207 is in the 68th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

vmwarevendor investigatingvia nvd_reference
View patch

References

securityfocus.com / bid/103752
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040676
Third Party AdvisoryVDB Entry
vmware.com / security/advisories/VMSA-2018-0009.html
Vendor Advisory