What’s Vulnerable › Vulnerabilities

CVE-2022-27240

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-03-18 · updated 2026-06-17
• Weakness: CWE-120

Description

scheme/webauthn.c in Glewlwyd SSO server 2.x before 2.6.2 has a buffer overflow associated with a webauthn assertion.

Affected products

• Glewlwyd Sso Server Project Glewlwyd Sso Server: from 2.0.0 before 2.6.2 — fixed in 2.6.2

How to fix

Upgrade to a fixed version: Glewlwyd Sso Server Project Glewlwyd Sso Server 2.6.2. Check the vendor advisory for mitigations.

References

• https://github.com/babelouest/glewlwyd/commit/4c5597c155bfbaf6491cf6b83479d241ae66940a
• https://github.com/babelouest/glewlwyd/releases/tag/v2.6.2
• https://github.com/babelouest/glewlwyd/commit/4c5597c155bfbaf6491cf6b83479d241ae66940a
• https://github.com/babelouest/glewlwyd/releases/tag/v2.6.2

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