{"id":"CVE-2026-72277","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-72277","generatedAt":"2026-10-28T03:25:53.555Z","title":"In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable memory attributes, even if the underlying PFN isn't…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory\n\nWhen constructing an L1 VNCR mapping, KVM unconditionally uses cacheable\nmemory attributes, even if the underlying PFN isn't memory. This gets\nparticularly hairy if the endpoint doesn't support cacheable memory\nattributes, potentially throwing an SError on writeback...\n\nWhile KVM does permit cacheable memory attributes on certain PFNMAP\nVMAs, kvm_translate_vncr() isn't currently grabbing the VMA. So do the\nsimpler thing for now and just reject everything that isn't memory.","published":"2026-08-15T06:21:58.000Z","lastModified":"2026-08-17T06:18:30.000Z","status":"Received","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":9.3,"severity":"CRITICAL","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"cwe":[],"affected":[],"epss":{"score":0.00194,"percentile":0.08948,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/4bd7dbe0b2243e6aa735cae4d5e1ff988b30b2a6","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bc00e0e376ee3572f5d26c174473abef1e35decc","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d5436e18e4fc2886ac306304d884ea3b92e1edbf","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72277","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}