Vulnerability record · CVE-2020-12651 · published 15 May 2020

CVE-2020-12651: Vandyke securecrt integer overflow vulnerability

Vandyke · Securecrt

SecureCRT before 8.7.2 allows remote attackers to execute arbitrary code via an Integer Overflow and a Buffer Overflow because a banner can trigger a line number to CSI functions that exceeds INT_MAX.

9.8 CVSS 3.1 Critical EPSS 6.6% · top 6.4% CWE-190 · Integer overflow

9.8CVSS 3.1 base score, v2 10.0

6.6%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

8References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Securecrt Vandyke

References

Link	Tags
https://bugs.chromium.org/p/project-zero/issues/detail?id=2033	ExploitThird Party Advisory
https://twitter.com/taviso/status/1261079774190919680	Third Party Advisory
https://www.vandyke.com/products/securecrt/history.txt	Release NotesVendor Advisory
https://www.vandyke.com/support/advisory/index.html	Vendor Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2033	ExploitThird Party Advisory
https://twitter.com/taviso/status/1261079774190919680	Third Party Advisory
https://www.vandyke.com/products/securecrt/history.txt	Release NotesVendor Advisory
https://www.vandyke.com/support/advisory/index.html	Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-12651), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.