Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out… (CVE-2026-42493)
CVE-2026-42493 involves a vulnerability related to operations that may take excessively long and require preemption. The affected functionality has been deprecated due to high cost and availability of alternative methods, but it remains accessible at users' own security risk. This vulnerability does not impact confidentiality or integrity but can cause a high impact on availability.
AI Analysis
Technical Summary
This vulnerability concerns operations that may run for an excessively long time and thus require preemption. Due to the high cost of addressing these issues, the vulnerable functionality has been deprecated but not removed, allowing continued use at the user's own security risk. Alternatives such as HVM/PVH with HAP and PV with shim are commonly available. The vulnerability is classified under CWE-400 (Uncontrolled Resource Consumption) and has a CVSS 3.1 vector indicating network attack vector, low attack complexity, no privileges or user interaction required, unchanged scope, no confidentiality or integrity impact, but high availability impact.
Potential Impact
The vulnerability can cause denial of service conditions by allowing operations to consume excessive resources, impacting system availability. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
No official patch or fix is currently available. The vulnerable functionality has been deprecated in favor of alternative methods (HVM/PVH: HAP, PV: shim). Users are advised to migrate to these alternatives to avoid the security risks associated with continued use of the deprecated functionality. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out… (CVE-2026-42493)
Description
CVE-2026-42493 involves a vulnerability related to operations that may take excessively long and require preemption. The affected functionality has been deprecated due to high cost and availability of alternative methods, but it remains accessible at users' own security risk. This vulnerability does not impact confidentiality or integrity but can cause a high impact on availability.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns operations that may run for an excessively long time and thus require preemption. Due to the high cost of addressing these issues, the vulnerable functionality has been deprecated but not removed, allowing continued use at the user's own security risk. Alternatives such as HVM/PVH with HAP and PV with shim are commonly available. The vulnerability is classified under CWE-400 (Uncontrolled Resource Consumption) and has a CVSS 3.1 vector indicating network attack vector, low attack complexity, no privileges or user interaction required, unchanged scope, no confidentiality or integrity impact, but high availability impact.
Potential Impact
The vulnerability can cause denial of service conditions by allowing operations to consume excessive resources, impacting system availability. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
No official patch or fix is currently available. The vulnerable functionality has been deprecated in favor of alternative methods (HVM/PVH: HAP, PV: shim). Users are advised to migrate to these alternatives to avoid the security risks associated with continued use of the deprecated functionality. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-7jxp-562x-944j
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-42493"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a6941e49c2644c7f86c5d02
Added to database: 07/28/2026, 23:57:24 UTC
Last enriched: 07/29/2026, 11:22:39 UTC
Last updated: 09/11/2026, 22:06:33 UTC
Views: 86
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