CVE-2020-8442: ossec Out-of-bounds Write
CVSS: 8.8v3.1HighModified
Published 30-01-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-8442 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in ossec. EPSS estimates a 2.38% chance of exploitation in the next 30 days, higher than 83.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
2.38%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 30-01-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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 metrics
2 scores · 1 source · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.38%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.38% on 21-09-2026
21-09-202621-10-2026
EPSS score2.38%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundOssec Hids
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Ossec1 product
- ossec≥ 2.7, ≤ 3.5.0
1 vendor · 1 product