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CVE-2026-71064 is a critical vulnerability in the Portable Clusterware component of Oracle Database Server. Affected versions are 19.3 through 19.32, 21.3 through 21.23, and 23.4.0 through 23.26.3. The issue is described as easily exploitable by an unauthenticated attacker who has access to the physical communication segment attached to the hardware on which Portable Clusterware executes. Successful exploitation allows compromise and takeover of the Portable Clusterware component. Although the flaw resides in Portable Clusterware, exploitation may also significantly affect additional products because the vulnerability has scope change. Oracle assigns CVSS v3.1 9.6 with vector AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H, indicating adjacent-network style access, low attack complexity, no privileges, no user interaction, and high impact to confidentiality, integrity, and availability.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
One of the Oracle Critical Patch Update August 2026 vulnerabilities listed by CSIRT Italia as affecting Oracle products; specific technical details are not provided in the content.
A vulnerability referenced in Oracle Database Server's August 2026 Critical Patch/CPU-related Nessus plugin.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.