Buffer overflow in Hcltech Notes

CVE-2020-14268

A vulnerability in the MIME message handling of the Notes client (versions 9 and 10) could potentially be exploited by an unauthenticated attacker resulting in a stack buffer overflow. This could allow a remote attacker to crash the client or inject code into the system which would execute with the privileges of the client.

Vulnerability class: Buffer Overflow

EPSS: 0.022 (80.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Hcltech Notes — versions 9.0.1, 10.0.1
  • N/a Hcl Notes — versions v9, v10

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-14268?
CVE-2020-14268 is a critical-severity vulnerability in Hcltech Notes, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-12-14.
How severe is CVE-2020-14268?
Critical severity. CVSS v3 base score is 9.8 out of 10.