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CVE-2020-2732

24
FAUCET Score

CVE-2020-2732 describes a flaw in the KVM hypervisor affecting Red Hat Enterprise Linux, where an L2 guest in a nested virtualization environment can bypass security to access sensitive L1 resources. This medium-severity vulnerability has a CVSS score of 6.8, indicating an attack vector that requires adjacent network access and low privileges, with high confidentiality impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.8MEDIUM

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.3
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.93%
Probability of exploitation in next 30 days
EPSS Percentile
56.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0093 is in the 86th percentile among its peer group of 314 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-1160.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-193.1.2.rt13.53.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-193.1.2.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1160.rt56.1131.el7
View patch

Vendor Advisories (1)

redhatCVE-2020-2732Moderate

Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

Feb 24, 2020

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
git.kernel.org / linus/07721feee46b4b248402133228235318199b05ec
PatchThird Party Advisory
git.kernel.org / linus/35a571346a94fb93b5b3b6a599675ef3384bc75c
PatchThird Party Advisory
git.kernel.org / linus/e71237d3ff1abf9f3388337cfebf53b96df2020d
PatchThird Party Advisory
linux.oracle.com / errata/ELSA-2020-5540.html
Third Party Advisory
linux.oracle.com / errata/ELSA-2020-5542.html
Third Party Advisory
linux.oracle.com / errata/ELSA-2020-5543.html
Third Party Advisory
lists.debian.org / debian-lts-announce/2020/06/msg00011.html
lists.debian.org / debian-lts-announce/2020/06/msg00012.html
lists.debian.org / debian-lts-announce/2020/06/msg00013.html
debian.org / security/2020/dsa-4667
debian.org / security/2020/dsa-4698
openwall.com / lists/oss-security/2020/02/25/3
Mailing ListThird Party Advisory
spinics.net / lists/kvm/msg208259.html
PatchThird Party Advisory