Authenticated code execution via oversized configuration parameters
Published Feb 19, 2026 · Updated Feb 19, 2026
Stack buffer overflow in CDATA FD614GS3-R850 3.2.7_P161006 allows remote authenticated users to execute code through its web interface. In build 0333.250211, the /post.json handler processes oversized node_mac, node_opt, opt_param, and domainblk values without enforcing buffer bounds. Direct requests require a valid authorization token; missing CSRF protection also lets a malicious link submit the overflow from an authenticated administrator's browser, causing code execution or a device crash.
Summary
What happened
Stack buffer overflow in CDATA FD614GS3-R850 3.2.7_P161006 allows remote authenticated users to execute code through its web interface. In build 0333.250211, the /post.json handler processes oversized node_mac, node_opt, opt_param, and domainblk values without enforcing buffer bounds. Direct requests require a valid authorization token; missing CSRF protection also lets a malicious link submit the overflow from an authenticated administrator's browser, causing code execution or a device crash.
The record
- CVE
- CVE-2025-69674
- Published
- Feb 19, 2026
- Updated
- Feb 19, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 19, 2026CVE publishedPublication date reported by the CVE source.
- Feb 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- CDATA FD614GS3-R850 buffer-overflow proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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