Priority MEDIUM 43
Improper input validation in the OSSEC HIDS agent for Windows prior to version 3.8.0 allows an attacker in with control over the OSSEC server or in possession of the agent's key to configure the agent to connect to a mal…
CVSS 4.0CRITICAL 9.5· Network · No auth · No interaction · EPSS 0.00369 · Published 2025-06-11 · No fix listed CWE-20
Priority LOW 35
An issue was discovered in OSSEC 3.6.0.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01192 · Published 2021-03-05 · No fix listed CWE-674
Priority MEDIUM 43
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a heap-based buffer overflow in the rootcheck decoder component via an authenticated client.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.02385 · Published 2020-01-30 · No fix listed CWE-787
Priority MEDIUM 47
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to an off-by-one heap-based buffer overflow during the cleaning of crafted syslog msgs (received from aut…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02685 · Published 2020-01-30 · No fix listed CWE-193
Priority MEDIUM 47
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of ossec-alert formatted msgs (received from authenticated remote a…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02489 · Published 2020-01-30 · No fix listed CWE-416
Priority MEDIUM 46
In OSSEC-HIDS 2.7 through 3.5.0, the OS_CleanMSG function in ossec-analysisd doesn't remove or encode terminal control characters or newlines from processed log messages.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02277 · Published 2020-01-30 · No fix listed CWE-20
Priority LOW 25
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to path traversal (with write access) via crafted syscheck messages written directly to the analysisd UNI…
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.00504 · Published 2020-01-30 · No fix listed CWE-22
Priority MEDIUM 46
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of syscheck formatted msgs (received from authenticated remote agen…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.01939 · Published 2020-01-30 · No fix listed CWE-416
Priority LOW 25
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a denial of service (NULL pointer dereference) via crafted messages written directly to the analysisd…
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.00492 · Published 2020-01-30 · No fix listed CWE-476
Priority LOW 35
The agent in OSSEC through 3.1.0 on Windows allows local users to gain NT AUTHORITY\SYSTEM access via Directory Traversal by leveraging full access to the associated OSSEC server.
CVSS 3.0HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00784 · Published 2018-11-29 · No fix listed CWE-22
Priority LOW 35
syscheck/seechanges.c in OSSEC 2.7 through 2.8.1 on NIX systems allows local users to execute arbitrary code as root.
CVSS 3.0HIGH 7.0· Local · Low privileges · No interaction · EPSS 0.01991 · Published 2017-09-07 · No fix listed CWE-264
Priority LOW 30
Cross-site scripting (XSS) vulnerability in site/search.php in OSSEC Web UI before 0.9 allows remote attackers to inject arbitrary web script or HTML by leveraging an unanchored regex.
CVSS 3.0MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.01286 · Published 2017-04-20 · No fix listed CWE-79
Priority LOW 36
host-deny.sh in OSSEC before 2.8.1 writes to temporary files with predictable filenames without verifying ownership, which allows local users to modify access restrictions in hosts.deny and gain root privileges by creati…
CVSS 2.0HIGH 7.2· Local · No auth · Interaction — · EPSS 0.02426 · Published 2014-12-02 · No fix listed CWE-264