[UPDATE] [medium] Red Hat Virtualization: Multiple vulnerabilities allow Denial of Service
A remote, anonymous attacker can exploit multiple vulnerabilities in Red Hat Virtualization to conduct a Denial of Service attack or disclose information.
CSIRTS triage
- What
- A remote, anonymous attacker can exploit multiple vulnerabilities in Red Hat Virtualization to conduct a Denial of Service attack or disclose information.
- Who is affected
- Deployments of Red Hat Virtualization.
- Urgency
- Remediation is medium urgency due to the potential for denial-of-service and information disclosure.
- Action
- Update to the latest version of Red Hat Virtualization.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0699
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Moderate exploitation riskCVE-2021-336232.9% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 85% of all scored CVEs.
- Elevated exploitation riskCVE-2021-3551511.9% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 96% of all scored CVEs.
- Elevated exploitation riskCVE-2021-3551612.7% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 96% of all scored CVEs.
- Elevated exploitation riskCVE-2021-3551710.9% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 95% of all scored CVEs.
- Elevated exploitation riskCVE-2021-3609013.3% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 96% of all scored CVEs.
- Moderate exploitation riskCVE-2021-38073.3% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 87% of all scored CVEs.
- Elevated exploitation riskCVE-2022-2295035.8% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 98% of all scored CVEs.
- Moderate exploitation riskCVE-2022-310511.6% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 73% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2021-33623 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-35515 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-35516 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-35517 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-36090 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-3807 | coverage & exploitation status | NVD · CVE.org |
| CVE-2022-22950 | coverage & exploitation status | NVD · CVE.org |
| CVE-2022-31051 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Red Hat Virtualization
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- medium[UPDATE] [medium] Red Hat Virtualization: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-07-02
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