9.6

CVE-2023-32722: zabbix Classic Buffer Overflow

CVSS: 9.6v3.1CriticalModified
AliasesDEBIAN-CVE-2023-32722
Published 12-10-2023Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2023-32722 is a critical (CVSS 9.6) Classic Buffer Overflow vulnerability in zabbix. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 55.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.6/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.80%
0%100%
Low · +0.11 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
DLA-3909-1

Timeline

  1. 12-10-2023
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

The zabbix/src/libs/zbxjson module is vulnerable to a buffer overflow when parsing JSON files via zbx_json_open.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.80%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

+0.11 pp

From 0.69% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.80%

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
  • zabbixAll versions (No fix recorded) | < 1:6.0.23+dfsg-1
Zabbix1 product
  • zabbix≥ 7.0.0alpha1, ≤ 7.0.0alpha3 | ≥ 6.0.0, ≤ 6.0.20 | ≥ 6.4.0, ≤ 6.4.5 | 7.0.0:alpha1 | 7.0.0:alpha2 | 7.0.0:alpha3

2 vendors · 2 products

References

3 links