CVE-2020-14364

Qemu vulnerability

CVSS

5.0

EPSS

5.4%

EPSS pct

92th

Exploited

No known

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.

Affected vendor

Qemu

Affected product

Qemu

CVSS vector

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

Weakness type (CWE)

CWE-125 — Out-of-bounds Read
CWE-787 — Out-of-bounds Write

Published

2020-08-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, high attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity, low impact to availability.

Its EPSS score of 5.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2020-14364

Confirm whether Qemu Qemu is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-14364.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-14364

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-14364 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2020-14364?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2020-14364.

Start free scan

No credit card. Agentless.

Related vulnerabilities

MEDIUM

CVE-2000-1058

Openview Network Node Manager vulnerability

Jetdirect vulnerability