Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2016-4962

22
FAUCET Score

CVE-2016-4962 describes a vulnerability in the libxl device-handling of Xen 4.6.x and earlier, including Oracle VM Server and Xen VM Server. This flaw allows a local guest OS administrator to manipulate xenstore information, leading to a denial of service (resource consumption or management facility confusion) or potential host OS privilege escalation. With a CVSS score of 6.7 (Medium), it requires high privileges and local access, but has a high impact on confidentiality, integrity, and availability. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.3CPE matchmatch criteria
cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*
3.4CPE matchmatch criteria
cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*
4.3.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
4.3.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
4.3.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 82nd percentile among its peer group of 3,720 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

oraclevendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xen

Vendor Advisories (1)

redhatCVE-2016-4962Moderate

xen: Unsanitised guest input in libxl device handling code (XSA-175)

Jun 2, 2016

References

debian.org / security/2016/dsa-3633
oracle.com / technetwork/topics/security/ovmbulletinjul2016-3090546.html
Vendor Advisory
securityfocus.com / bid/91006
securitytracker.com / id/1036023
Third Party AdvisoryVDB Entry
xenbits.xen.org / xsa/advisory-175.html
Vendor Advisory