CVE-2020-12651
SecureCRT before 8.7.2 allows remote attackers to execute arbitrary code via an Integer Overflow...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-12651- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-190
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-12651- Updated
- 2026-11-02
EUVDEUVD-2020-4950 No score
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.
- Record
EUVD-2020-4950- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qqjx-v7vc-77w8 No score
SecureCRT before 8.7.2 allows remote attackers to execute arbitrary code via an Integer Overflow...
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.
- Record
GHSA-qqjx-v7vc-77w8- Weakness
- CWE-190
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-12651 is a critical vulnerability (CVSS 9.8) in Vandyke Securecrt, published May 15, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.60%, the 93rd percentile. No source names a fixed version.