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-2021-3196

26
FAUCET Score

CVE-2021-3196 is a critical vulnerability affecting Hitachi ID Bravura Security Fabric versions 11.0.0 through 11.1.3, 12.0.0 through 12.0.2, and 12.1.0. This flaw allows an attacker to inject malicious, unsigned data into a signed SAML response during federated identity management, leading to the impersonation of high-privilege users. With a CVSS score of 8.8 (High), this vulnerability has a low attack complexity and can result in complete compromise of confidentiality, integrity, and availability. There is currently no public exploit intelligence, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.0.0, <= 11.1.3CPE matchmatch criteria
cpe:2.3:a:hitachi:id_bravura_security_fabric:*:*:*:*:*:*:*:*
>= 12.0.0, <= 12.0.2CPE matchmatch criteria
cpe:2.3:a:hitachi:id_bravura_security_fabric:*:*:*:*:*:*:*:*
12.1.0CPE matchmatch criteria
cpe:2.3:a:hitachi:id_bravura_security_fabric:12.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.96%
Probability of exploitation in next 30 days
EPSS Percentile
58.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0096 is in the 54th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

hitachi.com / hirt/hitachi-sec/2021/601.html
ExploitVendor Advisory
hitachi.com / hirt/security/index.html
Vendor Advisory
hitachi-id.com / cve-2021-3196-attackers-can-impersonate-another-user
Vendor Advisory