CVE detail
CVE-2026-5747
An out-of-bounds write issue in the virtio PCI transport in Firecracker 1.13.0 through 1.14.3 and 1.15.0 on x86_64 and aarch64 might allow a local guest user with root privileges to crash the Firecracker VMM process or potentially execute arbitrary code on the host via modification of virtio queue configuration registers after device activation. Achieving code execution on the host requires additional preconditions, such as the use of a custom guest kernel or specific snapshot configurations. To remediate this, users should upgrade to Firecracker 1.14.4 or 1.15.1 and later.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 17.9 · diversity 15.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
5 source links · newest first
Linked URL: https://aws.amazon.com/security/security-bulletins/2026-015-aws/ | Posted by rootforce | 2 points | 0 comments
communitynews.ycombinator.comApr 14, 2026, 2:52 PM- https://github.com/firecracker-microvm/firecracker/security/advisories/GHSA-776c-mpj7-jm3rgithub.com
No excerpt available.
Exploitgithub.comApr 8, 2026, 12:16 AM No excerpt available.
Exploitgithub.comApr 8, 2026, 12:16 AMNo excerpt available.
Exploitgithub.comApr 8, 2026, 12:16 AMNo excerpt available.
Vendor Advisoryaws.amazon.comApr 8, 2026, 12:16 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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