CVE-2023-26039 | ZoneMinder vulnerable to OS Command injection in daemonControl() API

ZoneMinder is a free, open source Closed-circuit television software application for Linux which supports IP, USB and Analog cameras. Versions prior to 1.36.33 and 1.37.33 contain an OS Command Injection via daemonControl() in (/web/api/app/Controller/HostController.php). Any authenticated user can construct an api command to execute any shell command as the web user. This issue is patched in versions 1.36.33 and 1.37.33.

Published: 2023-02-25 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2023-26039 is rated Moderate Risk (64/100): CVSS High severity, with high exploitation likelihood (EPSS 5.84%, 90th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.97% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-26039

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-01 1.87% 5.84% +3.97%
2 2026-02-26 1.34% 1.87% +0.54%
3 2025-11-21 1.34%

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-26039

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
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.
2.8 4.2 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 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: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:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 5.9 [email protected]

Weakness enumeration for CVE-2023-26039

OS Trackers for CVE-2023-26039

vendor priority summary link
alpine high CVE-2023-26039: 1 source package rows (zoneminder); 8 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 8. https://security.alpinelinux.org/vuln/CVE-2023-26039
debian unimportant CVE-2023-26039 unimportant priority: Debian including 1 source packages (zoneminder), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2023-26039
ubuntu medium CVE-2023-26039 medium priority: Ubuntu including 1 source packages (zoneminder), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 6, needs-triage 5, DNE 1, released 1. https://ubuntu.com/security/CVE-2023-26039

Affected software / configurations for CVE-2023-26039

Vendor Product Version Raw CPE
zoneminder zoneminder < 1.36.33 cpe:2.3:a:zoneminder:zoneminder:*:*:*:*:*:*:*:*
zoneminder zoneminder >= 1.37.00, < 1.37.33 cpe:2.3:a:zoneminder:zoneminder:*:*:*:*:*:*:*:*

References for CVE-2023-26039

cvelogic Threat Intelligence