CVE-2023-32723 [High] | Security Vulnerability in Zabbix

CVE-2023-32723 is rated Moderate Risk (44.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.14%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-03-30	0.27%	0.14%	-0.13%
2	2025-03-29	0.09%	0.27%	+0.18%
3	2023-10-18	—	0.09%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-03-30

0.27%

0.14%

-0.13%

2025-03-29

0.09%

0.27%

+0.18%

2023-10-18

—

0.09%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.	3.1	4.7	[email protected]
9.1	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.	3.9	5.2	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.5

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C): Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N): Service keeps running; no real outage angle.

3.1

4.7

[email protected]

9.1

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N): Service keeps running; no real outage angle.

3.9

5.2

[email protected]

OS Trackers for CVE-2023-32723

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2023-32723 not yet assigned priority: Debian including 1 source packages (zabbix), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2023-32723
`ubuntu`	medium	CVE-2023-32723 medium priority: Ubuntu including 1 source packages (zabbix), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 8, DNE 1, ignored 1, needed 1, released 1.	https://ubuntu.com/security/CVE-2023-32723

Affected software / configurations for CVE-2023-32723

Vendor	Product	Version	Raw CPE
zabbix	zabbix	>= 4.0.0, < 4.0.19	cpe:2.3:a:zabbix:zabbix::::::::
zabbix	zabbix	>= 4.4.0, < 4.4.7	cpe:2.3:a:zabbix:zabbix::::::::
zabbix	zabbix	4.0.19	cpe:2.3:a:zabbix:zabbix:4.0.19:rc1::::::
zabbix	zabbix	4.4.7	cpe:2.3:a:zabbix:zabbix:4.4.7:rc1::::::
zabbix	zabbix	5.0.0	cpe:2.3:a:zabbix:zabbix:5.0.0:alpha3::::::

References for CVE-2023-32723

URL	Tags
https://lists.debian.org/debian-lts-announce/2024/01/msg00012.html
https://support.zabbix.com/browse/ZBX-23230	Vendor Advisory

URL

CVE-2023-32723 | Inefficient permission check in class CControllerAuthenticationUpdate

Exploit prediction scoring system (EPSS) score for CVE-2023-32723

Common vulnerability scoring system (CVSS) metrics for CVE-2023-32723

Weakness enumeration for CVE-2023-32723

OS Trackers for CVE-2023-32723

Affected software / configurations for CVE-2023-32723

References for CVE-2023-32723