Bug 2552040 (CVE-2026-88964)

Summary: CVE-2026-88964 openvpn: OpenVPN: Denial of Service via crafted domain search options
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in OpenVPN. An integer underflow vulnerability allows a remote authenticated server to trigger a Denial of Service (DoS) or disclose sensitive memory contents on connected client systems. By providing specially crafted domain search options, a malicious or compromised server can cause the client application to crash or leak memory.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2553631    
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Description OSIDB Bzimport 2026-10-13 22:37:23 UTC
An integer underflow in OpenVPN version 2.7_alpha3 through 2.7.7 on Windows and Android allows remote authenticated servers to cause a denial of service or memory disclosure via crafted domain search options