THREATPORT/VULNERABILITY/CVE-2015-5312
HIGH SEVERITY

CVE-2015-5312

Ubuntu Linux vulnerability

CVSS
7.1
EPSS
4.5%
EPSS pct
91th
Exploited
No known
The xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.3 does not properly prevent entity expansion, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data, a different vulnerability than CVE-2014-3660.
Affected vendor
Canonical
Affected product
Ubuntu Linux
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness type (CWE)
Published
2015-12-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 4.5% 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-2015-5312

  • Confirm whether Canonical Ubuntu Linux is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2015-5312.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-5312

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-5312 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-2015-5312?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2015-5312.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH
CVE-2025-60697
Dir 882 Firmware vulnerability
HIGH
CVE-2025-60698
Dir 882 Firmware vulnerability
HIGH
CVE-2025-34322
Log Server vulnerability