How severe is CVE-2022-35867?

CVE-2022-35867 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-35867 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-35867?

CVE-2022-35867 affects Xhyve Project Xhyve. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-35867?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-35867 published?

CVE-2022-35867 was published on 2022-08-03 and last updated on 2026-06-17.

CVE-2022-35867

CVE-2022-35867 is a medium-severity vulnerability in Xhyve Project Xhyve with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-121
Affected product: Xhyve Project Xhyve
Published: 2022-08-03
Last modified: 2026-06-17

Description

This vulnerability allows local attackers to escalate privileges on affected installations of xhyve. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the e1000 virtual device. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-15056.

Frequently asked questions

What is CVE-2022-35867?: This vulnerability allows local attackers to escalate privileges on affected installations of xhyve. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the e1000 virtual device. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-15056.
How severe is CVE-2022-35867?: CVE-2022-35867 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-35867 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-35867?: CVE-2022-35867 affects Xhyve Project Xhyve. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-35867?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-35867 published?: CVE-2022-35867 was published on 2022-08-03 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-22-949/

Affected products (1)

cpe:2.3:a:xhyve_project:xhyve:0.2.0:*:*:*:*:*:*:*

More vulnerabilities in Xhyve Project Xhyve

CVE-2022-36660 — Critical (CVSS 9.8): xhyve commit dfbe09b was discovered to contain a stack buffer overflow via the component pci_vtrnd_notify().
CVE-2022-36661 — Medium (CVSS 6.5): xhyve commit dfbe09b was discovered to contain a NULL pointer dereference via the component vi_pci_read(). This…
CVE-2022-36659 — Medium (CVSS 6.5): xhyve commit dfbe09b was discovered to contain a NULL pointer dereference via the component vi_pci_write(). This…

All CVEs affecting Xhyve Project Xhyve →

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities

CVE-2026-12848 — Critical (CVSS 10.0): GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and…
CVE-2026-12847 — Critical (CVSS 10.0): GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and…
CVE-2026-12846 — Critical (CVSS 10.0): GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and…
CVE-2026-12485 — Critical (CVSS 10.0): GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and…
CVE-2026-37541 — Critical (CVSS 10.0): Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_gvret.cpp, the length…
CVE-2026-42996 — Critical (CVSS 10.0): JS8Call through 2.3.1 and JS8Call-improved before 3.0 have a stack-based buffer overflow via a radio transmission of…

Browse all CWE-121 (Stack-based Buffer Overflow) vulnerabilities →