7.5

CVE-2023-46317: nic knot_resolver

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2023-46317DEBIAN-CVE-2023-46317
Published 22-10-2023Last modified 12-09-2024
Open JSON

Vulnerability summary

CVE-2023-46317 is a high (CVSS 7.5) vulnerability in nic knot_resolver. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.4% 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
0.64%
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 1
DSA-5633-1

Timeline

  1. 22-10-2023
    PublishedVulnerability first disclosed.
  2. 12-09-2024
    Last modifiedVulnerability information updated.

Description

Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.64%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

0.00 pp

From 0.64% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.64%

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

No weakness data has been published for this record.

Affected systems

Debian1 product
  • knot-resolver< 5.6.0-1+deb12u1 | < 5.7.0-1
Nic1 product
Ubuntu1 product
  • knot-resolverAll versions (No fix recorded)

3 vendors · 3 products

References

5 links