8.1

CVE-2023-32726: zabbix

CVSS: 8.1v3.1HighModified
AliasesUBUNTU-CVE-2023-32726DEBIAN-CVE-2023-32726
Published 18-12-2023Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2023-32726 is a high (CVSS 8.1) vulnerability in zabbix. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51.2% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (NVD)
EPSS score
0.67%
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
DLA-3717-1DLA-3909-1

Timeline

  1. 18-12-2023
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.67%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

0.00 pp

From 0.67% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.67%

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

Zabbix2 products
  • zabbix≥ 5.0.0, ≤ 5.0.39 | ≥ 6.0.0, ≤ 6.0.23 | ≥ 6.4.0, ≤ 6.4.8 | ≥ 7.0.0alpha1, ≤ 7.0.0alpha7
  • zabbix-agent≥ 5.0.0, ≤ 5.0.39 | ≥ 6.0.0, ≤ 6.0.23 | ≥ 6.4.0, ≤ 6.4.8 | 7.0.0:alpha1 | 7.0.0:alpha6
Debian1 product
  • zabbixAll versions (No fix recorded) | < 1:6.0.24+dfsg-1
Ubuntu1 product
  • zabbixAll versions (No fix recorded)

3 vendors · 4 products

References

8 links