7.5

CVE-2023-2829: isc bind

CVSS: 7.5v3.1HighModified
Published 21-06-2023Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2023-2829 is a high (CVSS 7.5) vulnerability in isc bind. EPSS estimates a 0.88% chance of exploitation in the next 30 days, higher than 58.3% 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
0.88%
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. 21-06-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record. This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.88%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

0.00 pp

From 0.88% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.88%

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

Netapp6 products
Isc2 products
  • bind≥ 9.16.8, ≤ 9.16.41 | ≥ 9.18.11, ≤ 9.18.15
  • bind 9≥ 9.16.8-S1, ≤ 9.16.41-S1 | ≥ 9.18.11-S1, ≤ 9.18.15-S1

2 vendors · 8 products

References

3 links