CVE-2026-34193
CVE-2026-34193 is a medium-severity vulnerability with a CVSS 3.x base score of 4.3. 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-823.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- EPSS exploit prediction: 0% (4th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-33627
- Weakness: CWE-823
- Published:
- Last modified:
Description
Kernel software installed and running inside a Guest/Host VM may post improper commands to the GPU Firmware to trigger a write of data outside the intended GPU memory. A logic error in the address translation allowed a compromised Host (Kernel) to perform arbitrary writes to firmware memory.
Frequently asked questions
- What is CVE-2026-34193?
- Kernel software installed and running inside a Guest/Host VM may post improper commands to the GPU Firmware to trigger a write of data outside the intended GPU memory. A logic error in the address translation allowed a compromised Host (Kernel) to perform arbitrary writes to firmware memory.
- How severe is CVE-2026-34193?
- CVE-2026-34193 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2026-34193 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-34193?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-34193 have an EU (EUVD) identifier?
- Yes. CVE-2026-34193 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33627.
- When was CVE-2026-34193 published?
- CVE-2026-34193 was published on 2026-06-01 and last updated on 2026-06-17.
References
Other CWE-823 vulnerabilities
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