Detections
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F5 Networks BIG-IP : BIG-IP SSL Orchestrator vulnerability (K000149743)
medium Nessus Plugin ID 316107
Synopsis
The remote device is missing a vendor-supplied security patch.Description
The version of F5 Networks BIG-IP installed on the remote host is prior to 17.1.3.1 / 17.5.1.4 / 21.0.0.1. It is, therefore, affected by a vulnerability as referenced in the K000149743 advisory.A directory traversal vulnerability exists in BIG-IP SSL Orchestrator that allows an authenticated attacker with high privilege to overwrite, delete or corrupt arbitrary local files.(CVE-2026-42780)
Tenable has extracted the preceding description block directly from the F5 Networks BIG-IP security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to one of the non-vulnerable versions listed in the F5 Solution K000149743.See Also
Plugin Details
Severity: Medium
ID: 316107
File Name: f5_bigip_SOL000149743.nasl
Version: 1.1
Type: Local
Published: 5/21/2026
Updated: 5/21/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.1
CVSS v2
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 4.5
Vector: CVSS2#AV:N/AC:L/Au:M/C:N/I:C/A:N
CVSS Score Source: CVE-2026-42780
CVSS v3
Risk Factor: Medium
Base Score: 4.9
Temporal Score: 4.3
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6.9
Threat Score: 4.6
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/h:f5:big-ip, cpe:/a:f5:big-ip_ssl_orchestrator
Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version
Exploit Ease: No known exploits are available
Patch Publication Date: 5/13/2026
Vulnerability Publication Date: 5/13/2026
Reference Information
CVE: CVE-2026-42780