THREATPORT/VULNERABILITY/CVE-2015-5239
MEDIUM SEVERITY

CVE-2015-5239

Qemu vulnerability

CVSS
6.5
EPSS
3.6%
EPSS pct
88th
Exploited
No known
Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENT_CUT_TEXT message, which triggers an infinite loop.
Affected vendor
Qemu
Affected product
Qemu
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)
Published
2020-01-23

Risk analysis

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

Its EPSS score of 3.6% 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-2015-5239

  • Confirm whether Qemu Qemu is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2015-5239.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-5239

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-5239 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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