CVE-2020-8443
9.8
CRITICAL · CVSS 3.1 · EPSS 2.7% (pctl 85)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
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).
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.69% — more likely to be exploited than 85% of all CVEs |
| Weakness | CWE-193 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-01-30 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| ossec | ossec |
References
- https://github.com/ossec/ossec-hids/issues/1816
- https://github.com/ossec/ossec-hids/issues/1821
- https://security.gentoo.org/glsa/202007-33
- https://www.ossec.net/
- https://github.com/ossec/ossec-hids/issues/1816
- https://github.com/ossec/ossec-hids/issues/1821
- https://security.gentoo.org/glsa/202007-33
- https://www.ossec.net/
→ the Explorer · watch your stack · NVD