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P4Verified
CVE-2026-77178: n/a n/a
CVE-2026-77178. CVSS 3.1 base score 9.1 (CRITICAL, Source advisory).
Affected technology
n/a · n/a
Vendor not specified by the source
Description’s affected range: before 7.2.8
Component: Not specified by the source
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Guest OS users can cause an out-of-bounds write in the host OS in pcnetReceiveNoSync in DevPCNet.cpp in the PCNet (Am79C970A) network device model. Source advisory’s CVSS 3.1 assessment (base score 9.1/10) rates confidentiality impact as none; integrity and availability impact as high.
- CWE
- CWE-787
- CCR priority
- 36.4 /100 (P4)
- CVSS 3.1
- 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H · Source advisory
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-07 02:34:12.333111+00:00 UTC
- GitHub Advisory Database · Source record · observed 2026-10-07 02:36:03.777225+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-77178.html