Is there a public PoC exploit available for CVE-2026-2821?

Yes, a public proof-of-concept exploit is available for CVE-2026-2821. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-2821?

Within 24 hours: Inventory all instances of Fujian Smart Integrated Management Platform System and identify affected versions; isolate critical systems from internet-facing access if possible. Within 7 days: Implement network segmentation to restrict access to affected systems, enable enhanced logging and monitoring, and establish a vendor communication channel for patch availability. Within 30 days: Deploy compensating controls (WAF rules, access controls); plan upgrade to patched version once available; conduct security assessment of affected systems for potential compromise.

Fujian Smart Integrated Management Platform System CVE-2026-2821

Q: What is the CVSS score of CVE-2026-2821?

CVE-2026-2821 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

Q: Which versions of Fujian Smart Integrated Management Platform System are affected by CVE-2026-2821?

A high-severity vulnerability (CVE-2026-2821) affects Fujian Smart Integrated Management Platform System versions up to 7.5, with active public exploits available and no patch currently available.

MEDIUM

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2026-02-20 cna@vuldb.com

SQLi

5.5

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 01:11 NVD

7.3 (HIGH) 5.5 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

PoC Detected

Feb 20, 2026 - 13:49 vuln.today

Public exploit code

CVE Published

Feb 20, 2026 - 03:16 nvd

HIGH 7.3

DescriptionCVE.org

A weakness has been identified in Fujian Smart Integrated Management Platform System up to 7.5. Impacted is an unknown function of the file /Module/CRXT/Controller/XCamera.ashx. This manipulation of the argument ChannelName causes sql injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

AnalysisAI

A weakness has been identified in Fujian Smart Integrated Management Platform System versions up to 7.5. contains a security vulnerability (CVSS 7.3).

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Send HTTP request to XCamera.ashx

Exploit

Inject SQL payload in ChannelName parameter

Execution

Execute arbitrary SQL queries

Impact

Extract or modify database contents