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-2021-27215

29
FAUCET Score

CVE-2021-27215 is a critical authentication bypass vulnerability affecting genua genuagate versions before 9.0 Z p19, 9.1.x through 9.6.x before 9.6 p7, and 10.x before 10.1 p4. An attacker can exploit a flaw in the web interface's authentication process to log in as any user, including root, without providing valid credentials. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no known public exploit code (Metasploit, Nuclei, ExploitDB) and it's not listed in CISA's KEV catalog, it has garnered some community discussion and media coverage, indicating awareness of its severity.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.0CPE matchmatch criteria
cpe:2.3:a:genua:genuagate:*:*:*:*:*:*:*:*
>= 10.0, <= 10.1CPE matchmatch criteria
cpe:2.3:a:genua:genuagate:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:a:genua:genuagate:9.0:-:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:a:genua:genuagate:9.0:p1:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:a:genua:genuagate:9.0:p10:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.35%
Probability of exploitation in next 30 days
EPSS Percentile
81.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0235 is in the 72nd 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

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

Remediation

Remediation records are not available for this CVE.

References

kunde.genua.de / en/overview/genugate.html
PatchVendor Advisory
sec-consult.com / vulnerability-lab/advisory/authentication-bypass-genua-genugate
ExploitThird Party Advisory
genua.de / en/it-security-solutions/high-resistance-firewall-genugate
Product