What’s Vulnerable › Vulnerabilities

CVE-2020-14258

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-21 · updated 2026-06-17
• Weakness: CWE-20

Description

HCL Notes is susceptible to a Denial of Service vulnerability caused by improper validation of user-supplied input. A remote unauthenticated attacker could exploit this vulnerability using a specially-crafted email message to hang the client. Versions 9, 10 and 11 are affected.

Affected products

• HCL Notes: 9.0, 10.0, 11.0

References

• https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0085304
• https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0085304

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