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TI-2023-13830 Aliases CVE-2023-29451GHSA-5q7w-vc8g-r5vx

Denial of service caused by a bug in the JSON parser

Priority LOW 34CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Specially crafted string can cause a buffer overrun in the JSON parser library leading to a crash of the Zabbix Server or a Zabbix Proxy.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00783 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

No affected products listed by the sources yet.

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*up to 6.0.14; 6.4.2 – 6.4.4VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:alpha1:*:*:*:*:*:*6.4.0 alpha1VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:beta1:*:*:*:*:*:*6.4.0 beta1VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:beta2:*:*:*:*:*:*6.4.0 beta2VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:beta3:*:*:*:*:*:*6.4.0 beta3VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:beta4:*:*:*:*:*:*6.4.0 beta4VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:beta5:*:*:*:*:*:*6.4.0 beta5VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:beta6:*:*:*:*:*:*6.4.0 beta6VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:rc2:*:*:*:*:*:*6.4.0 rc2VulnerableZabbix
cpe:2.3:a:zabbix:zabbix:6.4.0:rc3:*:*:*:*:*:*6.4.0 rc3VulnerableZabbix
  • cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:* Versions up to 6.0.14; 6.4.2 – 6.4.4 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:alpha1:*:*:*:*:*:* Versions 6.4.0 alpha1 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:beta1:*:*:*:*:*:* Versions 6.4.0 beta1 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:beta2:*:*:*:*:*:* Versions 6.4.0 beta2 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:beta3:*:*:*:*:*:* Versions 6.4.0 beta3 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:beta4:*:*:*:*:*:* Versions 6.4.0 beta4 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:beta5:*:*:*:*:*:* Versions 6.4.0 beta5 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:beta6:*:*:*:*:*:* Versions 6.4.0 beta6 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:rc2:*:*:*:*:*:* Versions 6.4.0 rc2 Vulnerable ·Zabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:rc3:*:*:*:*:*:* Versions 6.4.0 rc3 Vulnerable ·Zabbix
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:zabbix:zabbix:6.4.0:rc4:*:*:*:*:*:*6.4.0 rc4VulnerableZabbix
  • cpe:2.3:a:zabbix:zabbix:6.4.0:rc4:*:*:*:*:*:* Versions 6.4.0 rc4 Vulnerable ·Zabbix

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-29451
  2. 2026-10-03 Alias added: GHSA-5q7w-vc8g-r5vx

References

Advisory 1

Other 1

  • TI-2022-07300 Authentication bypass by spoofing in Zabbix Frontend KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-28315 SQL injection in user.get API CVSS 3.1CRITICAL 9.9
  • TI-2016-08210 SQL injection vulnerability in Zabbix before 2.2.14 and 3.0 before 3.0.4 allows remote… CVSS 3.0CRITICAL 9.8
  • TI-2013-04884 Multiple SQL injection vulnerabilities in Zabbix 1.8.x before 1.8.18rc1, 2.0.x before 2.0.9rc1, and 2.1.x before 2.1.7. CVSS 3.1CRITICAL 9.8
  • TI-2022-07303 Possible view of the setup pages by unauthenticated users if config file already exists KEVCVSS 3.1MEDIUM 5.3
  • TI-2024-14721 Time Based SQL Injection in Zabbix Server Audit Log CVSS 3.1CRITICAL 9.1
See all 114 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences