THREATPORT/VULNERABILITY/CVE-2019-15961
HIGH SEVERITY

CVE-2019-15961

Clamav vulnerability

CVSS
7.5
EPSS
3.1%
EPSS pct
87th
Exploited
No known
A vulnerability in the email parsing module Clam AntiVirus (ClamAV) Software versions 0.102.0, 0.101.4 and prior could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to inefficient MIME parsing routines that result in extremely long scan times of specially formatted email files. An attacker could exploit this vulnerability by sending a crafted email file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to scan the crafted email file indefinitely, resulting in a denial of service condition.
Affected vendor
Clamav
Affected product
Clamav
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
  • CWE-400 — Uncontrolled Resource Consumption
Published
2020-01-15

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 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2019-15961

  • Confirm whether Clamav Clamav is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-15961.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-15961

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-15961 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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