CVE-2026-93683
CVE-2026-93683 is covered by the Red Hat CVE-2026-93683 security bulletin. Not in the CISA KEV catalog. Medium advisory severity. 1 advisory from Red Hat.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
CVE-2026-93683 at a glance
- CISA KEV
- Not listed (catalog checked )
- Highest advisory severity
- Medium
- Vendor advisories
- 1 from Red Hat
- VulniPulse record
- Published · Updated
Is CVE-2026-93683 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-93683 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-93683?
This CVE is tracked through a multi-CVE bulletin, so its fixed releases may differ from the bulletin-wide values below. Check the vendor source.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.4
Medium [CVE-2018-1059 +1] Guest-triggered out-of-bounds walk via vhost indirect descriptor length TOCTOU
CVE-2026-93683Source published Source updated
This bulletin covers 2 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
Guest-triggered out-of-bounds walk via vhost indirect descriptor length TOCTOU. Red Hat rates this moderate (CVSS 6.4). Weakness: CWE-367. Affected products named by the advisory: Fast Datapath for RHEL 10; Fast Datapath for RHEL 8; Fast Datapath for RHEL 9; Red Hat Enterprise Linux 10; and 5 more.
- Related products — impact not confirmed
- Fast Datapath for RHEL 10
- Fast Datapath for RHEL 8
- Fast Datapath for RHEL 9
- Red Hat Enterprise Linux 10
5 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No runtime mitigation. QEMU indirect_desc=off does not help: libvhost honours VRING_DESC_F_INDIRECT anyway. Do not expose vhost-user to untrusted guests.
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