🛡️ CVE-2026-48914

🟡 CVSS 6.7 — Medium ✅ No Known Exploit CWE-122 NVD

6.7

CVSS Score

0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality none, integrity low, availability high.

Weakness class

CVE-2026-48914 is classified as CWE-122: Heap-based Buffer Overflow. A write past the end of a heap allocation corrupts allocator metadata or neighbouring objects.

Affected software

CVE-2026-48914 is recorded against 1 package.

unknown

Timeline and source

Published on 12 June 2026 and last revised on 15 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

access.redhat.com
access.redhat.com
bugzilla.redhat.com
lore.kernel.org

CVE-2026-48914 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian

Details

Severity MEDIUM

CVSS Score 6.7

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

CWE CWE-122

Public Exploit ✅ No

Source NVD

Published 2026-06-12

Updated 2026-08-11

Modified 2026-07-15

Fix URL N/A

Affected Packages

Software	From version	Fixed in
unknown	—	—

References

https://access.redhat.com/errata/RHSA-2026:39311

https://access.redhat.com/security/cve/CVE-2026-48914

https://bugzilla.redhat.com/show_bug.cgi?id=2488283

https://lore.kernel.org/qemu-devel/[email protected]/

🔗 NVD 🔗 Mitre

Similar Threats

Unknown CVE-2022-0003
Unknown CVE-2022-0303
High CVE-2022-1206
Unknown CVE-2022-0931
Unknown CVE-2022-0094

Vulnerability Monitoring

Track new vulnerabilities in the affected software

CVE-2026-48914 is rated CVSS 6.7 Medium. BotEraser monitors your WordPress installation and notifies you when software you use appears in our vulnerability database.

Set Up Free Alerts →

No credit card required · Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.