彙總 ossec 相關全部產品的 CVE 與安全漏洞情報，包括 CVSS、EPSS、公開時間與漏洞情報資料。
歷史漏洞主要涉及 記憶體損壞與路徑處理缺陷 等問題，部分漏洞可能導致 異常行為，並影響 軟體部署與生產負載 相關場景。
相關漏洞資料主要來源於公開漏洞披露與安全公告，可用於評估歷史漏洞暴露面與修補優先順序。
| CVE | 摘要 | 來源 | 最高 CVSS | EPSS % | 公開時間 | 更新時間 |
|---|---|---|---|---|---|---|
| CVE-2021-28040 | An issue was discovered in OSSEC 3.6.0. An uncontrolled recursion vulnerability in os_xml.c occurs when a large number of opening and closing XML tags is used. Because recursion is used in _ReadElem without restriction, an attacker can trigger a segmentation fault once unmapped memory is reached. | [email protected] | 7.5 | 1.19% | 2021-03-05 | 2026-06-16 |
| CVE-2020-8448 | 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 UNIX domain socket by a local user. | [email protected] | 5.5 | 0.49% | 2020-01-29 | 2026-06-16 |
| CVE-2020-8447 | 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 agents and delivered to the analysisd processing queue by ossec-remoted). | [email protected] | 9.8 | 1.94% | 2020-01-29 | 2026-06-16 |
| CVE-2020-8446 | 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 UNIX domain socket by a local user. | [email protected] | 5.5 | 0.50% | 2020-01-29 | 2026-06-16 |
| CVE-2020-8445 | 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. In many cases, those characters are later logged. Because newlines (\n) are permitted in messages processed by ossec-analysisd, it may be possible to inject nested events into the ossec log. Use of terminal control characters may allow obfuscating events or executing commands when viewed through vulnerable terminal emulators. T | [email protected] | 9.8 | 2.28% | 2020-01-29 | 2026-06-16 |
| CVE-2020-8444 | 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 agents and delivered to the analysisd processing queue by ossec-remoted). | [email protected] | 9.8 | 2.49% | 2020-01-29 | 2026-06-16 |
| CVE-2020-8443 | 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 authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted). | [email protected] | 9.8 | 2.69% | 2020-01-29 | 2026-06-16 |
| CVE-2020-8442 | 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. | [email protected] | 8.8 | 2.38% | 2020-01-29 | 2026-06-16 |
| CVE-2018-19666 | 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. | [email protected] | 7.8 | 0.78% | 2018-11-29 | 2026-06-16 |
| CVE-2015-3222 | syscheck/seechanges.c in OSSEC 2.7 through 2.8.1 on NIX systems allows local users to execute arbitrary code as root. | [email protected] | 7.0 | 1.99% | 2017-09-07 | 2026-06-16 |
| CVE-2016-4847 | 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. | [email protected] | 6.1 | 1.29% | 2017-04-20 | 2026-06-16 |
| CVE-2014-5284 | 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 creating the temporary files before automatic IP blocking is performed. | [email protected] | 7.2 | 2.50% | 2014-12-01 | 2026-06-16 |