Skip to content
VulniPulse
Sign in
High7.5Fortinet Updated

High [CVE-2022-0778] Vulnerability in OpenSSL library

This high-severity Fortinet advisory covers CVE-2022-0778 affecting FortiOS, FortiManager, FortiAnalyzer.

FG-IR-22-059 Published Apr 1, 2022Updated by vendor Aug 27, 2026
CVE-2022-0778
Affected products & platforms
FortinetFortiGateFirewallFortiOSFortiManagerFortiAnalyzerFortiMail
Open vendor advisory

Android app · Google Play

Monitor future Fortinet CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery
Get CVE alertsSee app features

Summary

CVSSv3 Score:

7.5

A security advisory was released affecting the version of OpenSSL library used in some Fortinet products:CVE-2022-0778:The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli.

Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. It is possible to trigger the infinite loop by crafting a certificate that has invalid explicit curve parameters.

Since certificate parsing happens prior to verification of the certificate signature, any process that parses an externally supplied certificate may thus be subject to a denial of service attack. The infinite loop can also be reached when parsing crafted private keys as they can contain explicit elliptic curve parameters.

Affected products named by the advisory: FortiOS; FortiManager; FortiAnalyzer; FortiDeceptor; and 2 more.

Affected versions
  • 1.0.2
  • 1.1.1

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Fixed versions
  • 3.0.2
  • 3.0.0
  • 3.0.1
  • 1.1.1-1
  • 1.0.2-1

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Upgrade per the vendor advisory: FortiOS: 6.0.15; FortiOS: 6.2.11; FortiOS: 6.4.9; FortiOS: 7.0.6; FortiOS: 7.2.0; ….

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.

Sign in to join the discussion.