Dashboard / CVE-2026-122193

CVE-2026-122193

CRITICAL
INFO Priority: 0.15 BB Relevance: 69/100
Published: 2026-11-06 Modified: 2026-11-12 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

OS command injection in the example SSM document provisioning script in Trusted Remote Execution (REX) before 2026-07-28 might allow an authenticated remote user who is permitted to invoke the Rex-RO or Rex-RW SSM document to execute arbitrary commands as root on the managed instance, bypassing Cedar policy enforcement. To remediate this issue, users should delete any Rex-RO and Rex-RW SSM documents created from the example script, in each account and Region where it was run.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
AWS trusted-remote-execution N/A
AWS trusted-remote-execution N/A
AWS trusted-remote-execution N/A

References & Advisories (3)

Bug Bounty Relevance

69 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

9.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:L/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

1.63%
Raw Score 0.016260
Percentile 76.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.01626
2026-11-12
0.01626
2026-11-10
0.01626
2026-11-09
0.01626
2026-11-08
0.01626
2026-11-07
0.01626

Intelligence Sources

mitre ref →
nvd ref →

External Links