Is CVE-2026-48914 in the CISA KEV catalog?

No. CVE-2026-48914 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-48914?

CVE-2026-48914 has a CVSS v3 base score of 6.7 (Moderate).

What is the EPSS score for CVE-2026-48914?

CVE-2026-48914 has an EPSS score of 0.12% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48914?

Upgrade qemu on debian unstable to 1:11.0.2+ds-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-48914

MEDIUM

6.7

CVSS v3

NVD

Description

A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process.

CWE-122Heap-based Buffer Overflow

How to fix

Remediation Available

qemuDebian

Fixed in:1:11.0.2+ds-1CVE-2026-48914

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H/E:U

Exploit Intelligence

0.12%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-12.