Dashboard / CVE-2026-122192

CVE-2026-122192

HIGH
MEDIUM Priority: 0.01 BB Relevance: 34/100
Published: 2026-11-04 Modified: 2026-11-12 First seen: 2026-11-04 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: High
UI: None
S: X
AT: Present
VC: High
VI: High
VA: High

Description

Improper handling of a failed memory remap in Firecracker versions 0.23.0 through 1.16.1 might allow a guest user with root privileges to read or modify Firecracker VMM process memory via balloon or virtio-mem discard requests on microVMs restored from a snapshot with the File memory backend, if the host fails to create the replacement mapping. To remediate this issue, users should upgrade to Firecracker 1.16.2 or 1.17.0 and later.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
AWS firecracker 0.23.0 < 1.16.2
AWS firecracker 0.23.0 < 1.16.2

References & Advisories (4)

Bug Bounty Relevance

34 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.16%
Raw Score 0.001570
Percentile 4.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00157
2026-11-13
0.00157
2026-11-12
0.00157
2026-11-10
0.00157
2026-11-09
0.00157
2026-11-08
0.00157
2026-11-07
0.00157
2026-11-06
0.00157
2026-11-05
0.00157

Intelligence Sources

mitre ref →
nvd ref →

External Links