Is CVE-2020-3305 in the CISA KEV catalog?

No. CVE-2020-3305 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-3305?

CVE-2020-3305 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-3305?

CVE-2020-3305 has an EPSS score of 1.23% (65th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-3305?

Upgrade adaptive security appliance to 9.6.4.36 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-3305

HIGH

7.5

CVSS v3

NVD

Description

A vulnerability in the implementation of the Border Gateway Protocol (BGP) module in 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 incorrect processing of certain BGP packets. An attacker could exploit this vulnerability by sending a crafted BGP packet. A successful exploit could allow the attacker to cause a DoS condition on the affected device.

CWE-400Resource Exhaustion

How to fix

Remediation Available

adaptive security applianceNVD

Affected:< 9.6.4.36Fixed in:9.6.4.36CVE-2020-3305derived from NVD

adaptive security appliance softwareNVD

Affected:>= 9.12, < 9.12.2.9Fixed in:9.12.2.9CVE-2020-3305derived from NVD

firepower threat defenseNVD

Affected:>= 6.4.0, < 6.4.0.6Fixed in:6.4.0.6CVE-2020-3305derived 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

tools.cisco.com

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	Fix

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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.