CVE-2016-5242: n/a vulnerability

CVE-2016-5242: The p2m_teardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with acc...

The p2m_teardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (NULL pointer dereference and host OS crash) by creating concurrent domains and holding references to them, related to VMID exhaustion.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 00:53 UTC (UTC+00:00)

Security readout for executives and security teams

This Xen issue can let a local guest-side user with driver-domain access crash the host. The business impact is service outage, not data theft based on the supplied evidence. Exposure is narrower than internet-facing bugs because the attacker needs access inside a relevant Xen ARM virtualization environment. Likely exposed systems are ARM-based Xen 4.4.x through 4.6.x deployments where guest OS users can access the driver domain. The bundle does not establish exposure for other Xen versions, non-ARM paths, or products beyond Xen-related distributions. Prioritize if Xen ARM hosts support critical or multi-tenant workloads. The risk is mainly availability: a qualified local actor could crash a host, causing downtime across hosted workloads. Internet-wide emergency treatment is not supported by the supplied evidence. Mitigation focus: Review Xen XSA-181 and distribution advisories for applicable fixed packages.; Apply vendor-provided Xen or Debian security updates where affected.; Restrict driver-domain access to trusted administrative users only..

Prepared: Jun 13, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2016-5242 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 7, 2016, 14:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.