Bug 2570626 (CVE-2026-50109)

Summary: CVE-2026-50109 pcm: pcm: Denial of Service via out-of-bounds write
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: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Intel Performance Counter Monitor (PCM). An out-of-bounds write vulnerability allows an unauthenticated remote attacker to trigger memory corruption over the network without requiring user interaction. A successful attack primarily results in a Denial of Service (DoS), causing the application to crash or become unavailable.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-10 20:11:49 UTC 
Out-of-bounds write for some Intel(R) Performance Counter Monitor (Intel(R) PCM) within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via network access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.