Security readout for executives and security teams
Plain-English summary
CVE-2026-25836 is an OS command injection issue in Fortinet FortiSandbox Cloud and PaaS 5.0.4. It requires a privileged attacker with super-admin profile and CLI access, so exposure is mainly from compromised or malicious administrators, not unauthenticated internet attackers.
Executive priority
Treat as a targeted privileged-access risk. It is not described as unauthenticated or KEV-exploited, but successful abuse could fully affect confidentiality, integrity, and availability. Prioritize asset confirmation, privileged access review, and Fortinet guidance.
Technical view
The CVE describes improper neutralization of command elements in FortiSandbox Cloud 5.0.4 and FortiSandbox PaaS 5.0.4. A super-admin with CLI access may execute unauthorized code or commands through crafted HTTP requests. CVSS 3.1 is 6.7 with high confidentiality, integrity, and availability impact but high privileges required.
Likely exposure
Organizations using FortiSandbox Cloud 5.0.4 or FortiSandbox PaaS 5.0.4 are the named exposure set. The source bundle marks default status as unaffected for other versions, so do not assume broader product impact without Fortinet confirmation.
Exploitation context
The bundle does not report CISA KEV listing or active exploitation. The vulnerability requires super-admin profile and CLI access, which substantially narrows attacker prerequisites. The CVSS vector includes E:F, but no source details exploit availability or exploitation in the wild.
Researcher notes
Evidence is limited to the CVE record and Fortinet advisory reference in the bundle. The affected products are only FortiSandbox Cloud 5.0.4 and FortiSandbox PaaS 5.0.4. Avoid broad FortiSandbox assumptions unless Fortinet publishes them.
Mitigation direction
- Review Fortinet PSIRT FG-IR-26-096 for official remediation guidance.
- Inventory FortiSandbox Cloud and PaaS deployments for version 5.0.4.
- Restrict super-admin and CLI access to explicitly authorized administrators.
- Monitor privileged admin activity until vendor remediation is confirmed.
Validation and detection
- Confirm whether any FortiSandbox Cloud or PaaS instance runs 5.0.4.
- Review accounts with super-admin profile and CLI access.
- Check logs for unusual privileged HTTP activity or unexpected command execution outcomes.
- Verify remediation status against Fortinet advisory FG-IR-26-096.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-25836 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C1.25.9fortinetVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://fortiguard.fortinet.com/psirt/FG-IR-26-096CVE reference, fortinet
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.