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CVE-2015-3252

24
FAUCET Score

CVE-2015-3252 describes a critical vulnerability in Apache CloudStack before version 4.5.2, where VNC passwords for KVM virtual machines are not properly preserved during migration. This flaw allows remote attackers to gain unauthorized access to affected virtual machines by connecting to their VNC servers. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.5.1CPE matchmatch criteria
cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:*

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
2.17%
Probability of exploitation in next 30 days
EPSS Percentile
80.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0217 is in the 70th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation records are not available for this CVE.

References

mail-archives.apache.org / mod_mbox/cloudstack-users/201602.mbox/%3C7508580E-3D83-49FD-BE6E-B329B0503130%40gmail.com%3E
Vendor Advisory
blogs.apache.org / cloudstack/entry/two_late_announced_security_advisories
Vendor Advisory
securityfocus.com / archive/1/537459/100/0/threaded