CVE-2026-36499: n/a
CVE-2026-36499 is a vulnerability in Open vSwitch v3.6.90 where the udpif_set_threads() function lacks an upper-bound check. This allows an attacker with OVSDB write access to request an excessive number of handler or revalidation threads, potentially causing a denial of service (DoS) through resource exhaustion. The vulnerability has a medium severity with a CVSS score of 6.5. No official patch or remediation guidance is currently confirmed.
AI Analysis
Technical Summary
The vulnerability CVE-2026-36499 affects Open vSwitch version 3.6.90. It arises from a missing upper-bound check in the udpif_set_threads() function, which permits an attacker who has write access to the OVSDB to specify an excessive number of handler or revalidation threads. This can lead to resource exhaustion and cause a denial of service condition. The CVSS v3.1 score is 6.5, indicating a medium severity impact focused on availability. There is no information about an official fix or patch at this time.
Potential Impact
An attacker with OVSDB write access can exploit this vulnerability to cause resource exhaustion by requesting an excessive number of threads, resulting in a denial of service (DoS) condition. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict OVSDB write access to trusted users only to reduce the risk of exploitation.
CVE-2026-36499: n/a
Description
CVE-2026-36499 is a vulnerability in Open vSwitch v3.6.90 where the udpif_set_threads() function lacks an upper-bound check. This allows an attacker with OVSDB write access to request an excessive number of handler or revalidation threads, potentially causing a denial of service (DoS) through resource exhaustion. The vulnerability has a medium severity with a CVSS score of 6.5. No official patch or remediation guidance is currently confirmed.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-36499 affects Open vSwitch version 3.6.90. It arises from a missing upper-bound check in the udpif_set_threads() function, which permits an attacker who has write access to the OVSDB to specify an excessive number of handler or revalidation threads. This can lead to resource exhaustion and cause a denial of service condition. The CVSS v3.1 score is 6.5, indicating a medium severity impact focused on availability. There is no information about an official fix or patch at this time.
Potential Impact
An attacker with OVSDB write access can exploit this vulnerability to cause resource exhaustion by requesting an excessive number of threads, resulting in a denial of service (DoS) condition. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict OVSDB write access to trusted users only to reduce the risk of exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a21c501e29bf47b50c32a58
Added to database: 06/04/2026, 18:33:37 UTC
Last enriched: 08/06/2026, 18:56:54 UTC
Last updated: 09/11/2026, 19:31:55 UTC
Views: 104
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.