CVE-2026-23920 | Zabbix up to 7.0.21/7.2.14/7.4.5 Shell Command os command injection (EUVD-2026-14952)

VDB-352857 · CVE-2026-23920 · EUVD-2026-14952 ZABBIX UP TO 7.0.21/7.2.14/7.4.5 SHELL COMMAND OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.3 $0-$5k 3.00 Summaryinfo A vulnerability, which was classified as critical, has been found in Zabbix up to 7.0.21/7.2.14/7.4.5. Affected is an unknown function of the component Shell Command Handler. Performing a manipulation results in os command injection. This vulnerability is reported as CVE-2026-23920. The attack is possible to be carried out remotely. No exploit exists. Detailsinfo A vulnerability, which was classified as critical, was found in Zabbix up to 7.0.21/7.2.14/7.4.5. This affects an unknown functionality of the component Shell Command Handler. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is: Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands. The advisory is shared at support.zabbix.com. This vulnerability is uniquely identified as CVE-2026-23920 since 01/19/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/24/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-14952). Productinfo Type Network Management Software Name Zabbix Version 7.0.0 7.0.1 7.0.2 7.0.3 7.0.4 7.0.5 7.0.6 7.0.7 7.0.8 7.0.9 7.0.10 7.0.11 7.0.12 7.0.13 7.0.14 7.0.15 7.0.16 7.0.17 7.0.18 7.0.19 7.0.20 7.0.21 7.2.0 7.2.1 7.2.2 7.2.3 7.2.4 7.2.5 7.2.6 7.2.7 7.2.8 7.2.9 7.2.10 7.2.11 7.2.12 7.2.13 7.2.14 7.4.0 7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 License open-source CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.3 VulDB Base Score: 6.3 VulDB Temp Score: 6.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Os command injection CWE: CWE-78 / CWE-77 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 01/19/2026 CVE reserved 03/24/2026 +64 days Advisory disclosed 03/24/2026 +0 days VulDB entry created 03/24/2026 +0 days VulDB entry last update Sourcesinfo Advisory: support.zabbix.com Status: Confirmed CVE: CVE-2026-23920 (🔒) GCVE (CVE): GCVE-0-2026-23920 GCVE (VulDB): GCVE-100-352857 EUVD: 🔒 Entryinfo Created: 03/24/2026 20:56 Updated: 03/24/2026 21:59 Changes: 03/24/2026 20:56 (65), 03/24/2026 21:59 (1) Complete: 🔍 Cache ID: 99:48E:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸