7.5

CVE-2018-1110: nic knot_resolver Improper Input Validation

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2018-1110DEBIAN-CVE-2018-1110
Published 30-03-2021Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-1110 is a high (CVSS 7.5) Improper Input Validation vulnerability in nic knot_resolver. EPSS estimates a 1.24% chance of exploitation in the next 30 days, higher than 68.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.24%
0%100%
Low · +0.13 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-03-2021
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.24%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

+0.13 pp

From 1.11% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.24%

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
  • knot-resolver< 2.3.0-1
Nic1 product
Ubuntu1 product
  • knot-resolverAll versions (No fix recorded)

3 vendors · 3 products

References

6 links