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Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openvswitch3.1","product":"Red Hat OpenShift Container Platform 4","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openvswitch","product":"Red Hat OpenStack Platform 13 (Queens)","source":"CNA: redhat","vendor":"Red Hat","versions":[]}],"cveId":"CVE-2026-100236","cwes":["CWE-787"],"description":"A flaw was found in the DPDK GSO library. When software GSO copies packet headers into a new mbuf, it does not check that the header fits in the source first segment or in the destination buffer, and a header longer than the configured GSO segment size can underflow the payload-size calculation. A remote or guest-supplied packet processed with software GSO can trigger an out-of-bounds read or write.","epss":{"date":"2026-11-03","percentile":0.25152,"score":0.00321},"exploits":[],"kev":null,"metrics":[{"score":8.6,"severity":"high","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},{"score":8.6,"severity":"high","source":"NVD: secalert@redhat.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"}],"modifiedAt":1793729645086,"publishedAt":1791995605792,"references":[{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:94629"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:94630"},{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-100236"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541488"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/security/cve/CVE-2026-100236"},{"source":"secalert@redhat.com","tags":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541488"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"Do not run software GSO (rte_gso_segment / testpmd --enable-gso) on untrusted packets. Size direct_pool larger than the max header (~208 B tunneled). That does not fully cover the short-first-segment over-read."}],"revision":"1ff7019625a299aac4b31a996331df1b9d9c99a568da17086a12c02ee4bc1a68","sources":[{"modifiedAt":1793729645086,"name":"CNA: redhat","retrievedAt":1793732912021,"url":"https://www.cve.org/CVERecord?id=CVE-2026-100236"},{"modifiedAt":1793726271747,"name":"NVD","retrievedAt":1793729799567,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100236"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793725772644,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100236"}],"ssvc":{"assessedAt":1792460481354,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Dpdk: dpdk: heap out-of-bounds read/write in gso header copy","updatedAt":1793732912021}