A vulnerability in the SSL/TLS inspection of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series firewalls could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation for certain fields of specific SSL/TLS messages. An attacker could exploit this vulnerability by sending a malformed SSL/TLS message through an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. No manual intervention is needed to recover the device after it has reloaded.
Project Subscriptions
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2020-24833 | A vulnerability in the SSL/TLS inspection of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series firewalls could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation for certain fields of specific SSL/TLS messages. An attacker could exploit this vulnerability by sending a malformed SSL/TLS message through an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. No manual intervention is needed to recover the device after it has reloaded. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 11 Aug 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Cisco secure Firewall Threat Defense
|
|
| CPEs | cpe:2.3:a:cisco:firepower_threat_defense:6.4.0:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_threat_defense:6.5.0:*:*:*:*:*:*:* |
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.3.0:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_threat_defense:6.5.0:*:*:*:*:*:*:* |
| Vendors & Products |
Cisco firepower Threat Defense
|
Cisco secure Firewall Threat Defense
|
Wed, 13 Nov 2024 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Projects
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Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-11-13T17:46:10.984Z
Reserved: 2019-12-12T00:00:00.000Z
Link: CVE-2020-3562
Updated: 2024-08-04T07:37:55.507Z
Status : Modified
Published: 2020-10-21T19:15:17.887
Modified: 2026-08-11T19:33:44.513
Link: CVE-2020-3562
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD