CVE & CISA-KEV Catalog

CVE-2020-3303

HIGH
7.5
CVSS v3
NVD

Description

A vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper management of system memory. An attacker could exploit this vulnerability by sending malicious IKEv1 traffic to an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.

CWE-399Resource Management ErrorsCWE-400Resource Exhaustion

How to fix

Remediation Available
adaptive security applianceNVD
Affected:< 9.6.4.36Fixed in:9.6.4.36CVE-2020-3303derived from NVD
adaptive security appliance softwareNVD
Affected:>= 9.12, < 9.12.2.9Fixed in:9.12.2.9CVE-2020-3303derived from NVD
firepower threat defenseNVD
Affected:>= 6.4.0, < 6.4.0.6Fixed in:6.4.0.6CVE-2020-3303derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

1.23%probability of exploitation in 30 days
65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Vendor Advisory1
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.