CVE-2020-24718

Exp

bhyve, as used in FreeBSD through 12.1 and illumos (e.g., OmniOS CE through r151034 and OpenIndiana through Hipster 2020.04), does not properly restrict VMCS and VMCB read/write operations, as demonstrated by a root user in a container on an Intel system, who can gain privileges by modifying VMCS_HOST_RIP.

Published: 2020-09-25 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-24718 is rated Exploit Available (56.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.10%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2020-24718

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-24718

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 2025-03-30 0.20% 0.10% -0.10%
2 2025-03-29 0.09% 0.20% +0.11%
3 2023-03-07 — 0.09% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-24718

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.2 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:H)
They need powerful rights—admin, root, or similar—before this pays off.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.5 6.0 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2020-24718

Affected software / configurations for CVE-2020-24718

Vendor Product Version Raw CPE
freebsd freebsd <= 11.2 cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p10:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p11:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p12:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p13:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p4:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p5:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p6:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p7:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p8:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:p9:*:*:*:*:*:*
freebsd freebsd 11.3 cpe:2.3:o:freebsd:freebsd:11.3:rc3:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:beta1:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:rc1:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:rc2:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p10:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p11:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p12:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p2:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p4:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p5:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p6:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p7:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p8:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p9:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p3:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p5:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p6:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p7:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p8:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p9:*:*:*:*:*:*
omniosce omnios <= r151034 cpe:2.3:o:omniosce:omnios:*:*:*:*:community:*:*:*
openindiana openindiana <= hipster_2020.04 cpe:2.3:o:openindiana:openindiana:*:*:*:*:*:*:*:*
netapp clustered_data_ontap — cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*

References for CVE-2020-24718

cvelogic Threat Intelligence