Confirmed 100VulnerabilityFirst seen 4 Nov 2026, 19:40 UTC

CVE-2026-122192 - Guest Access to Firecracker Process Memory After a Failed Memory Discard

Coverage

Headline	Source	Type	Published
CVE-2026-122192 - Guest Access to Firecracker Process Memory After a Failed Memory Discard	AWS Security Bulletins	Official	4 Nov 2026, 19:40 UTC
Escaping AWS Firecracker from guest userspace: VMM memory corruption (CVE-2026-122192)	r/netsec	Community	4 Nov 2026, 21:47 UTC

CVE	Exploited (CISA KEV)	CVSS	EPSS
CVE-2026-122192	No	—	—

CVSS from NVD; EPSS is FIRST’s estimate of the chance of exploitation in the next 30 days.

Confidence	100 · Confirmed
Most trusted source	90
Independent organisations reporting it (1)	+0
Confirmed by an official source or CISA KEV	+10

We link to the original reporting and don’t reproduce it. Read the sources above for the full details.