Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-21777

26
FAUCET Score

CVE-2023-21777 describes an Elevation of Privilege vulnerability affecting Azure App Service on Azure Stack Hub. With a CVSS score of 8.7 (High), this vulnerability allows a local attacker to achieve significant impact on confidentiality and integrity with low attack complexity. While there is no evidence of active exploitation (KEV: No) and no public exploit code available, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:azure_app_service_on_azure_stack:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.7HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 66th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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 (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Azure App Service on Azure Stack HubFixed in: 98.0.1.703
View patch

Vendor Advisories (1)

microsoft2023-Feb/CVE-2023-21777Important

Azure App Service on Azure Stack Hub Elevation of Privilege Vulnerability

Feb 14, 2023

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2023-21777
PatchRelease NotesVendor Advisory