CVE-2026-36499: n/a
CVE-2026-36499 is a vulnerability in Open vSwitch version 3. 6. 90 where the udpif_set_threads() function lacks an upper-bound check on the number of threads that can be requested. An attacker with OVSDB write access can exploit this to request an excessive number of handler or revalidation threads, potentially causing resource exhaustion and denial of service (DoS). No patch or official remediation information is currently available. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability arises from a missing upper-bound check in the udpif_set_threads() function of Open vSwitch v3.6.90. It allows an attacker who has write access to the OVSDB database to specify an excessive number of threads for handling or revalidation. This can lead to resource exhaustion, resulting in a denial of service condition. The vulnerability requires OVSDB write access, which implies some level of prior access or compromise. No CVSS score or vendor advisory is currently available, and no patch status is confirmed.
Potential Impact
An attacker with OVSDB write access can cause a denial of service by exhausting system resources through requesting an excessive number of threads. This could disrupt normal Open vSwitch operations and impact network availability. There is no evidence of exploitation in the wild, and the impact is limited to denial of service via resource exhaustion.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict OVSDB write access to trusted users only to prevent exploitation. Monitor for unusual thread count configurations if possible.
CVE-2026-36499: n/a
Description
CVE-2026-36499 is a vulnerability in Open vSwitch version 3. 6. 90 where the udpif_set_threads() function lacks an upper-bound check on the number of threads that can be requested. An attacker with OVSDB write access can exploit this to request an excessive number of handler or revalidation threads, potentially causing resource exhaustion and denial of service (DoS). No patch or official remediation information is currently available. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from a missing upper-bound check in the udpif_set_threads() function of Open vSwitch v3.6.90. It allows an attacker who has write access to the OVSDB database to specify an excessive number of threads for handling or revalidation. This can lead to resource exhaustion, resulting in a denial of service condition. The vulnerability requires OVSDB write access, which implies some level of prior access or compromise. No CVSS score or vendor advisory is currently available, and no patch status is confirmed.
Potential Impact
An attacker with OVSDB write access can cause a denial of service by exhausting system resources through requesting an excessive number of threads. This could disrupt normal Open vSwitch operations and impact network availability. There is no evidence of exploitation in the wild, and the impact is limited to denial of service via resource exhaustion.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict OVSDB write access to trusted users only to prevent exploitation. Monitor for unusual thread count configurations if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a21c501e29bf47b50c32a58
Added to database: 6/4/2026, 6:33:37 PM
Last enriched: 6/4/2026, 6:48:38 PM
Last updated: 6/4/2026, 7:36:58 PM
Views: 3
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