How severe is CVE-2020-3344?

CVE-2020-3344 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-3344 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3344?

CVE-2020-3344 primarily affects Cisco Advanced Malware Protection For Endpoints. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-3344?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-3344 published?

CVE-2020-3344 was published on 2020-05-22 and last updated on 2026-06-17.

CVE-2020-3344

CVE-2020-3344 is a medium-severity vulnerability in Cisco Advanced Malware Protection For Endpoints with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Cisco Advanced Malware Protection For Endpoints
Published: 2020-05-22
Last modified: 2026-06-17

Description

A vulnerability in Cisco AMP for Endpoints Linux Connector Software and Cisco AMP for Endpoints Mac Connector Software could allow an authenticated, local attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted packet to an affected device. A successful exploit could allow the attacker to cause the Cisco AMP for Endpoints service to crash and restart.

Frequently asked questions

What is CVE-2020-3344?: A vulnerability in Cisco AMP for Endpoints Linux Connector Software and Cisco AMP for Endpoints Mac Connector Software could allow an authenticated, local attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted packet to an affected device. A successful exploit could allow the attacker to cause the Cisco AMP for Endpoints service to crash and restart.
How severe is CVE-2020-3344?: CVE-2020-3344 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-3344 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3344?: CVE-2020-3344 primarily affects Cisco Advanced Malware Protection For Endpoints. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-3344?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-3344 published?: CVE-2020-3344 was published on 2020-05-22 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-amp4elinux-h33dkrvb

Affected products (2)

cpe:2.3:a:cisco:advanced_malware_protection_for_endpoints:*:*:*:*:*:linux:*:*
cpe:2.3:a:cisco:advanced_malware_protection_for_endpoints:*:*:*:*:*:mac_os:*:*

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