Paper/Archive/CVE-2026-77178

CVE-2026-77178

mitre — Oracle VM VirtualBox before 7.2.8 allows guest OS users to cause an out-of-bounds write in the host OS in pcnetReceiveNoSync in DevPCNet.…

EPSS 0.3%CVSS 9.1

critical.is priorityof 100

CVSS 9.1 (ADP)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 26.8.268 × 205.4 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Oracle VM VirtualBox before 7.2.8 allows guest OS users to cause an out-of-bounds write in the host OS in pcnetReceiveNoSync in DevPCNet.cpp in the PCNet (Am79C970A) network device model.

Affected

ProductAffectedFixed inSource

n/an/a–CNA

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refvirtualbox.org/wiki/Download_Old_Builds_7_0 reforacle.com refgist.github.com/entropy1337/cd0d5b368445d20c43aca2590b313892