THREATPORT/VULNERABILITY/CVE-2015-6855
HIGH SEVERITY

CVE-2015-6855

Qemu vulnerability

CVSS
7.5
EPSS
3.5%
EPSS pct
88th
Exploited
No known
hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.
Affected vendor
Qemu
Affected product
Qemu
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2015-11-06

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 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2015-6855

  • Confirm whether Qemu Qemu is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2015-6855.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-6855

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-6855 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-2015-6855?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2015-6855.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH
CVE-2025-4755
Di 7003g Firmware vulnerability
HIGH
CVE-2025-4919
Firefox vulnerability
HIGH
CVE-2025-4883
Di 8100g Firmware vulnerability