What is the CVSS score of CVE-2022-36660?

CVE-2022-36660 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.9%.

Is there a public PoC exploit available for CVE-2022-36660?

Yes, a public proof-of-concept exploit is available for CVE-2022-36660. Prioritise patching immediately. EPSS: 0.9%.

Xhyve CVE-2022-36660

CRITICAL

Out-of-bounds Write (CWE-787)

2022-09-07 cve@mitre.org

Memory Corruption Buffer Overflow Xhyve

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/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

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 07, 2022 - 17:15 nvd

CRITICAL 9.8

DescriptionNVD

xhyve commit dfbe09b was discovered to contain a stack buffer overflow via the component pci_vtrnd_notify().

AnalysisAI

xhyve commit dfbe09b was discovered to contain a stack buffer overflow via the component pci_vtrnd_notify(). Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. xhyve commit dfbe09b was discovered to contain a stack buffer overflow via the component pci_vtrnd_notify(). Affected products include: Xhyve Project Xhyve.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).