7.5

CVE-2024-47188: oisf suricata Use of Insufficiently Random Values

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2024-47188DEBIAN-CVE-2024-47188
Published 16-10-2024Last modified 16-10-2024
Open JSON

Vulnerability summary

CVE-2024-47188 is a high (CVSS 7.5) Use of Insufficiently Random Values vulnerability in oisf suricata. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.9% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0181OPENSUSE-SU-2025:15394-1

Timeline

  1. 16-10-2024
    PublishedVulnerability first disclosed.
  2. 16-10-2024
    Last modifiedVulnerability information updated.

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, missing initialization of the random seed for "thash" leads to byte-range tracking having predictable hash table behavior. This can lead to an attacker forcing lots of data into a single hash bucket, leading to severe performance degradation. This issue has been addressed in 7.0.7.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • suricata< 1:7.0.7-1
Oisf1 product
Ubuntu1 product
  • suricataAll versions (No fix recorded)

3 vendors · 3 products

References

5 links