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-2021-21479

43
FAUCET Score

CVE-2021-21479 is a critical vulnerability affecting SAP SCIMono versions prior to 0.0.19, allowing for Java expression injection and remote code execution. With a CVSS score of 9.1, it presents a critical risk due to its network-based attack vector, low attack complexity, and high impact on system integrity and availability. While not listed in CISA's KEV catalog, public exploit intelligence indicates the existence of Nuclei templates for critical severity RCE, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.0.19CPE matchmatch criteria
cpe:2.3:a:sap:scimono:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
10.12%
Probability of exploitation in next 30 days
EPSS Percentile
95.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-21479 · Jul 18, 2021
This CVE's current EPSS score of 0.1012 is in the 91st percentile among its peer group of 36,897 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

No media coverage found for this CVE.

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 (1)

mavenpatch availablevia ghsa
Product: com.sap.scimono:scimono-serverFixed in: 0.0.19

Vendor Advisories (1)

mavenGHSA-29q4-gxjq-rx5chigh

Remote Code Execution in SCIMono

Feb 10, 2021

References

github.com / SAP/scimono/security/advisories/GHSA-29q4-gxjq-rx5c
Third Party Advisory