6.5

CVE-2019-6474: isc kea

CVSS: 6.5v3.1MediumModified
AliasesALPINE-CVE-2019-6474UBUNTU-CVE-2019-6474DEBIAN-CVE-2019-6474
Published 16-10-2019Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2019-6474 is a medium (CVSS 6.5) vulnerability in isc kea. EPSS estimates a 0.72% chance of exploitation in the next 30 days, higher than 53% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.72%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-10-2019
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

A missing check on incoming client requests can be exploited to cause a situation where the Kea server's lease storage contains leases which are rejected as invalid when the server tries to load leases from storage on restart. If the number of such leases exceeds a hard-coded limit in the Kea code, a server trying to restart will conclude that there is a problem with its lease store and give up. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.72%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.72% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.72%

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

Alpine1 product
  • kea≥ 1.4.0, < 1.7.2-r0
Debian1 product
  • isc-kea< 1.7.5-1
Isc1 product
  • kea1.4.0 to 1.5.0 | 1.6.0-beta1 | 1.6.0-beta2 | ≥ 1.4.0, ≤ 1.5.0 | 1.6.0:beta1 | 1.6.0:beta2
Ubuntu1 product
  • isc-keaAll versions (No fix recorded)

4 vendors · 4 products

References

5 links