Tenable Nessus Agent vulnerabilities

CVE-2026-2026 [MEDIUM] CWE-276 CVE-2026-2026: A vulnerability has been identified where weak file permissions in the Nessus Agent directory on Win A vulnerability has been identified where weak file permissions in the Nessus Agent directory on Windows hosts could allow unauthorized access, potentially permitting Denial of Service (DoS) attacks.

CVE-2025-36640 [HIGH] CWE-269 CVE-2025-36640: A vulnerability has been identified in the installation/uninstallation of the Nessus Agent Tray App A vulnerability has been identified in the installation/uninstallation of the Nessus Agent Tray App on Windows Hosts which could lead to escalation of privileges.

CVE-2025-36632 [HIGH] CWE-276 CVE-2025-36632: In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative user could execute code with SYSTEM privilege.

CVE-2025-36633 [HIGH] CWE-269 CVE-2025-36633: In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative user could arbitrarily delete local system files with SYSTEM privilege, potentially leading to local privilege escalation.

CVE-2025-36631 [HIGH] CWE-269 CVE-2025-36631: In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative user could overwrite arbitrary local system files with log content at SYSTEM privilege.

CVE-2025-24915 [HIGH] CWE-276 CVE-2025-24915: When installing Nessus Agent to a non-default location on a Windows host, Nessus Agent versions prio When installing Nessus Agent to a non-default location on a Windows host, Nessus Agent versions prior to 10.8.3 did not enforce secure permissions for sub-directories. This could allow for local privilege escalation if users had not secured the directories in the non-default installation location.

CVE-2024-3292 [HIGH] CWE-367 CVE-2024-3292: A race condition vulnerability exists where an authenticated, local attacker on a Windows Nessus Age A race condition vulnerability exists where an authenticated, local attacker on a Windows Nessus Agent host could modify installation parameters at installation time, which could lead to the execution of arbitrary code on the Nessus host. - CVE-2024-3292

CVE-2024-3291 [HIGH] CWE-281 CVE-2024-3291: When installing Nessus Agent to a directory outside of the default location on a Windows host, Nessu When installing Nessus Agent to a directory outside of the default location on a Windows host, Nessus Agent versions prior to 10.6.4 did not enforce secure permissions for sub-directories. This could allow for local privilege escalation if users had not secured the directories in the non-default installation location.

CVE-2024-2390 [HIGH] CWE-269 CVE-2024-2390: As a part of Tenable’s vulnerability disclosure program, a vulnerability in a Nessus plugin was ide As a part of Tenable’s vulnerability disclosure program, a vulnerability in a Nessus plugin was identified and reported. This vulnerability could allow a malicious actor with sufficient permissions on a scan target to place a binary in a specific filesystem location, and abuse the impacted plugin in order to escalate privileges.

CVE-2023-6178 [MEDIUM] CWE-787 CVE-2023-6178: An arbitrary file write vulnerability exists where an authenticated attacker with privileges on the An arbitrary file write vulnerability exists where an authenticated attacker with privileges on the managing application could alter Nessus Rules variables to overwrite arbitrary files on the remote host, which could lead to a denial of service condition.

CVE-2023-5847 [HIGH] CWE-269 CVE-2023-5847: Under certain conditions, a low privileged attacker could load a specially crafted file during inst Under certain conditions, a low privileged attacker could load a specially crafted file during installation or upgrade to escalate privileges on Windows and Linux hosts.

CVE-2021-20118 [MEDIUM] CVE-2021-20118: Nessus Agent 8.3.0 and earlier was found to contain a local privilege escalation vulnerability which Nessus Agent 8.3.0 and earlier was found to contain a local privilege escalation vulnerability which could allow an authenticated, local administrator to run specific executables on the Nessus Agent host. This is different than CVE-2021-20117.

CVE-2021-20117 [MEDIUM] CVE-2021-20117: Nessus Agent 8.3.0 and earlier was found to contain a local privilege escalation vulnerability which Nessus Agent 8.3.0 and earlier was found to contain a local privilege escalation vulnerability which could allow an authenticated, local administrator to run specific executables on the Nessus Agent host. This is different than CVE-2021-20118.

CVE-2021-20106 [MEDIUM] CVE-2021-20106: Nessus Agent versions 8 Nessus Agent versions 8.2.5 and earlier were found to contain a privilege escalation vulnerability which could allow a Nessus administrator user to upload a specially crafted file that could lead to gaining administrator privileges on the Nessus host.

CVE-2021-20099 [MEDIUM] CVE-2021-20099: Nessus Agent 8 Nessus Agent 8.2.4 and earlier for Windows were found to contain multiple local privilege escalation vulnerabilities which could allow an authenticated, local administrator to run specific Windows executables as the Nessus host. This is different than CVE-2021-20100.

CVE-2021-20100 [MEDIUM] CVE-2021-20100: Nessus Agent 8 Nessus Agent 8.2.4 and earlier for Windows were found to contain multiple local privilege escalation vulnerabilities which could allow an authenticated, local administrator to run specific Windows executables as the Nessus host. This is different than CVE-2021-20099.

CVE-2021-3450 [HIGH] CWE-295 CVE-2021-3450: The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an additional strict check. An error in the implementation

CVE-2021-20077 [MEDIUM] CVE-2021-20077: Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.

CVE-2020-5793 [HIGH] CVE-2020-5793: A vulnerability in Nessus versions 8.9.0 through 8.12.0 for Windows & Nessus Agent 8.0.0 and 8.1.0 f A vulnerability in Nessus versions 8.9.0 through 8.12.0 for Windows & Nessus Agent 8.0.0 and 8.1.0 for Windows could allow an authenticated local attacker to copy user-supplied files to a specially constructed path in a specifically named user directory. An attacker could exploit this vulnerability by creating a malicious file and copying the file to a system d

CVE-2019-16168 [MEDIUM] CWE-369 CVE-2019-16168: In SQLite through 3.29.0, whereLoopAddBtreeIndex in sqlite3.c can crash a browser or other applicati In SQLite through 3.29.0, whereLoopAddBtreeIndex in sqlite3.c can crash a browser or other application because of missing validation of a sqlite_stat1 sz field, aka a "severe division by zero in the query planner."