THREATPORT/VULNERABILITY/CVE-2020-3327
HIGH SEVERITY

CVE-2020-3327

Clam Antivirus vulnerability

CVSS
7.5
EPSS
5.1%
EPSS pct
91th
Exploited
No known
A vulnerability in the ARJ archive parsing module in Clam AntiVirus (ClamAV) Software versions 0.102.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a heap buffer overflow read. An attacker could exploit this vulnerability by sending a crafted ARJ file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.
Affected vendor
Cisco
Affected product
Clam Antivirus
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2020-05-13

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 5.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2020-3327

  • Confirm whether Cisco Clam Antivirus is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-3327.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-3327

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-3327 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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