Detections
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RHEL 6 : bind (RHSA-2026:95727)
high Nessus Plugin ID 377040
Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:95727 advisory.The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols.
BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.
Security Fix(es):
* bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation (CVE-2026-3039)
* bind: BIND: Denial of Service via specially crafted DNS messages (CVE-2026-5946)
* bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field (CVE-2026-13321)
* bind: bind9: Potential memory usage beyond configured limits (CVE-2026-11622)
* bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards (CVE-2026-11721)
* bind: bind9: Unexpected exit with NSEC and NSEC3 both present (CVE-2026-13204)
* bind: BIND: Denial of Service via unbounded processing of crafted DNS messages (CVE-2026-19630)
* bind: bind: Arbitrary code execution via GSS-TSIG UDP message replay (CVE-2026-94300)
Bug Fix(es) and Enhancement(s):
* bind: New root trust anchor key for DNSSEC [rhel-6-els] (JIRA:RHEL-131964)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected bind, bind-libs and / or bind-sdb packages.See Also
https://access.redhat.com/errata/RHSA-2026:95727
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2479767
https://bugzilla.redhat.com/show_bug.cgi?id=2479771
https://bugzilla.redhat.com/show_bug.cgi?id=2504166
https://bugzilla.redhat.com/show_bug.cgi?id=2504298
https://bugzilla.redhat.com/show_bug.cgi?id=2504338
https://bugzilla.redhat.com/show_bug.cgi?id=2504447
https://bugzilla.redhat.com/show_bug.cgi?id=2556406
Plugin Details
Severity: High
ID: 377040
File Name: redhat-RHSA-2026-95727.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Red Hat Local Security Checks
Published: 11/6/2026
Updated: 11/6/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.6
Percentile: 98.11
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.1
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N
CVSS Score Source: CVE-2026-13321
CVSS v3
Risk Factor: High
Base Score: 8.6
Temporal Score: 7.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:rhel_els:6, p-cpe:/a:redhat:enterprise_linux:bind-libs, p-cpe:/a:redhat:enterprise_linux:bind-sdb, p-cpe:/a:redhat:enterprise_linux:bind
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 11/6/2026
Vulnerability Publication Date: 5/20/2026
Reference Information
CVE: CVE-2026-11622, CVE-2026-11721, CVE-2026-13204, CVE-2026-13321, CVE-2026-19630, CVE-2026-3039, CVE-2026-5946, CVE-2026-94300