Red Hat Fixes Important libpcap Flaw on RHEL 8.10 EUS
Tech GuruQuick Answer
Red Hat published RHSA-2026:76045 for Red Hat Enterprise Linux 8.10 EUS BaseOS and CodeReady Builder libpcap packages. Match entitled deployments to the exact advisory relationships, apply libpcap 1.9.1-6.el8_10 for the advisory-listed RHEL 8.10 EUS architectures, validate dependent operations, and preserve the change evidence.
Match Entitled Deployments And Apply The Supported Red Hat Content
What to do now: Inventory Red Hat Enterprise Linux 8.10 EUS BaseOS and CodeReady Builder libpcap packages, confirm the exact entitled branch and installed build or digest, apply the advisory-listed content, validate representative services, and document exceptions.
Last verified: 2026-10-06 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | Red Hat Enterprise Linux 8.10 EUS BaseOS and CodeReady Builder libpcap packages |
|---|---|
| Advisory | RHSA-2026:76045 |
| CVE | CVE-2026-0799 |
| Authoritative release date | 2026-10-05 18:20:26 UTC |
| Authority revision date | 2026-10-06 00:10:19 UTC |
| Affected versions | The supported Red Hat Enterprise Linux 8.10 EUS BaseOS and CodeReady Builder libpcap packages builds identified as affected by the advisory product-status relationships. |
| Fixed version | libpcap 1.9.1-6.el8_10 for the advisory-listed RHEL 8.10 EUS architectures |
| CVSS base score | 8.7 (CVSS v3.1) |
| CVSS severity | High |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
Red Hat published replacement libpcap packages for CVE-2026-0799 on the advisory-listed RHEL 8.10 Extended Update Support channels.
What To Validate Now
- Inventory. Locate Red Hat Enterprise Linux 8.10 EUS BaseOS and CodeReady Builder libpcap packages; record the installed build or digest, repository and entitlement, architecture, owner, exposure, dependencies, and maintenance group.
- Establish applicability. Compare each deployment with the product and fixed-status relationships in RHSA-2026:76045. Do not infer applicability from a component name or CVSS rating alone.
- Remediate. Apply libpcap 1.9.1-6.el8_10 for the advisory-listed RHEL 8.10 EUS architectures from the supported Red Hat channel for the exact product branch or architecture.
- Validate. Confirm the resulting package version or immutable digest, exercise representative authentication, application, platform, and recovery paths, monitor for regressions, and record the result.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Confirm EUS entitlement and test packet capture, monitoring, IDS, troubleshooting, and dependent applications after the package change. Preserve pre-change versions or digests, logs, installation output, validation evidence, and any rollback decision.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
