ZDI-26-687: Linux Kernel Open vSwitch Flow Delete Use-After-Free Information Disclosure Vulnerability

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Sep 14, 2026 · Catalog

   Detected

   This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.4. The following CVEs are assigned: CVE-2026-80994.

Sources

• CVE.orgVulnerability recordCVE-2026-80994

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-80994

  30-day exploitation probability 0.2%

  first.org
• Zero Day InitiativeCoordinated disclosureZDI-26-687

  This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.4. The following CVEs are assigned: CVE-2026-80994.

  zerodayinitiative.com