Highest advisory severityMedium 1 vendor · 1 advisory
CVE-2026-18103
CVE-2026-18103: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
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Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium4.9
Medium [CVE-2026-18103] Persistent denial of service due to buffer overflow via OMAPI
CVE-2026-18103Source published Source updated
Persistent denial of service due to buffer overflow via OMAPI. Red Hat rates this low (CVSS 4.9). Weakness: CWE-120.
- Related products — impact not confirmed
- No product details extracted. Check the source bulletin.
- 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
- To mitigate this issue, secure OMAPI access by configuring TSIG key authentication to prevent unauthorized connections to the OMAPI port (7911). If the `dhcpd` service has already crashed due to this flaw, manually remove the problematic InfiniBand lease entry from `/var/lib/dhcpd/dhcpd.leases` and then restart the `dhcpd` service. Restarting the `dhcpd` service may temporarily interrupt DHCP services for clients.
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