CVE Explorer
CVE-2026-23554
The Intel EPT paging code uses an optimization to defer flushing of any cached
EPT state until the p2m lock is dropped, so that multiple modifications done
under the same locked region only issue a single flush.
Freeing of paging structures however is not deferred until the flushing is
done, and can result in freed pages transiently being present in cached state.
Such stale entries can point to memory ranges not owned by the guest, thus
allowing access to unintended memory regions.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"Xen","vendor":"Xen","versions":[{"status":"unknown","version":"consult Xen advisory XSA-480"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:e00744ab6d172173b58802d3cb6dfa19976709f59b2e67a0dd99b6d908a81d4a · sha256:551aa9c263a30ac7… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:e00744ab6d172173b58802d3cb6dfa19976709f59b2e67a0dd99b6d908a81d4a · sha256:551aa9c263a30ac7… · /containers/adp/1/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-367","description":"CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:e00744ab6d172173b58802d3cb6dfa19976709f59b2e67a0dd99b6d908a81d4a · sha256:551aa9c263a30ac7… · /containers/adp/1/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/03/17/6"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:e00744ab6d172173b58802d3cb6dfa19976709f59b2e67a0dd99b6d908a81d4a · sha256:551aa9c263a30ac7… · /containers/adp/0/references/0
{"url":"http://xenbits.xen.org/xsa/advisory-480.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:e00744ab6d172173b58802d3cb6dfa19976709f59b2e67a0dd99b6d908a81d4a · sha256:551aa9c263a30ac7… · /containers/adp/0/references/1
{"url":"https://xenbits.xenproject.org/xsa/advisory-480.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:e00744ab6d172173b58802d3cb6dfa19976709f59b2e67a0dd99b6d908a81d4a · sha256:551aa9c263a30ac7… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.