A guest started with Populated on Demand enabled (PoD) can attempt to reclaim pages which aren't regular guest RAM. (CVE-2026-62434)
CVE-2026-62434 is a vulnerability in Xen where a guest started with Populated on Demand (PoD) enabled can attempt to reclaim pages that are not regular guest RAM. This behavior can lead to corruption of the memory management state within Xen. The vulnerability has a medium severity rating and does not have known exploits in the wild. No affected versions or patches are explicitly stated in the available data.
AI Analysis
Technical Summary
This vulnerability involves the Xen hypervisor's handling of memory pages when Populated on Demand (PoD) is enabled for a guest. A guest can attempt to reclaim pages outside of regular guest RAM, causing corruption in Xen's memory management state. The issue is categorized under CWE-787 (Out-of-bounds Write). The CVSS vector indicates a network attack vector with low complexity, no privileges required, no user interaction, unchanged scope, no confidentiality or integrity impact, but an availability impact classified as low. There is no information on affected versions or available patches.
Potential Impact
The vulnerability can cause corruption of the memory management state in Xen, potentially leading to denial of service or instability of the hypervisor environment. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch information is provided, monitoring vendor communications for updates is recommended. No specific mitigations are indicated in the available data.
A guest started with Populated on Demand enabled (PoD) can attempt to reclaim pages which aren't regular guest RAM. (CVE-2026-62434)
Description
CVE-2026-62434 is a vulnerability in Xen where a guest started with Populated on Demand (PoD) enabled can attempt to reclaim pages that are not regular guest RAM. This behavior can lead to corruption of the memory management state within Xen. The vulnerability has a medium severity rating and does not have known exploits in the wild. No affected versions or patches are explicitly stated in the available data.
CVSS v3.1
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves the Xen hypervisor's handling of memory pages when Populated on Demand (PoD) is enabled for a guest. A guest can attempt to reclaim pages outside of regular guest RAM, causing corruption in Xen's memory management state. The issue is categorized under CWE-787 (Out-of-bounds Write). The CVSS vector indicates a network attack vector with low complexity, no privileges required, no user interaction, unchanged scope, no confidentiality or integrity impact, but an availability impact classified as low. There is no information on affected versions or available patches.
Potential Impact
The vulnerability can cause corruption of the memory management state in Xen, potentially leading to denial of service or instability of the hypervisor environment. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch information is provided, monitoring vendor communications for updates is recommended. No specific mitigations are indicated in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-q4cr-q8pj-wgf3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-62434"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a6941de9c2644c7f86c5621
Added to database: 07/28/2026, 23:57:18 UTC
Last enriched: 07/29/2026, 11:23:53 UTC
Last updated: 09/12/2026, 10:01:32 UTC
Views: 104
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