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CVE-2022-39327

30
FAUCET Score

CVE-2022-39327 is a critical code injection vulnerability affecting Azure CLI versions prior to 2.40.0 when run on Windows machines with PowerShell, specifically when parameter values contain '&' or '|' symbols. With a CVSS score of 9.8 (CRITICAL), this vulnerability allows for unauthenticated remote code execution with high impact on confidentiality, integrity, and availability. While not listed in CISA KEV, it has garnered significant community discussion and media coverage, though no public exploit code is currently available.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.40.0CPE matchmatch criteria
cpe:2.3:a:microsoft:azure_command-line_interface:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.21%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0321 is in the 79th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Azure CLIFixed in: 2.42.0
View patch
pippatch availablevia ghsa
Product: azure-cliFixed in: 2.40.0

Vendor Advisories (2)

microsoft2022-Nov/CVE-2022-39327Critical

GitHub: CVE-2022-39327 Improper Control of Generation of Code ('Code Injection') in Azure CLI

Nov 8, 2022
pipGHSA-47xc-9rr2-q7p4high

Improper Control of Generation of Code ('Code Injection') in Azure CLI

Oct 25, 2022

References

github.com / Azure/azure-cli/pull/23514
ExploitPatchThird Party Advisory
github.com / Azure/azure-cli/pull/24015
PatchThird Party Advisory
github.com / Azure/azure-cli/security/advisories/GHSA-47xc-9rr2-q7p4
ExploitMitigationThird Party Advisory