Authenticated code execution via EnableIpv6 parameter overflow
Published May 8, 2025 · Updated May 9, 2025
Buffer overflow in New H3C Technologies GR-1800AX 100R008 allows remote authenticated users to execute code through the IPv6 form. The EnableIpv6 handler at /routing/goform/aspForm processes the attacker-controlled param field without enforcing its destination buffer's capacity. A valid low-privilege session and adjacent-network access are required; successful exploitation can crash the router or execute code in its firmware context.
Summary
What happened
Buffer overflow in New H3C Technologies GR-1800AX 100R008 allows remote authenticated users to execute code through the IPv6 form. The EnableIpv6 handler at /routing/goform/aspForm processes the attacker-controlled param field without enforcing its destination buffer's capacity. A valid low-privilege session and adjacent-network access are required; successful exploitation can crash the router or execute code in its firmware context.
The record
- CVE
- CVE-2025-4440
- Published
- May 8, 2025
- Updated
- May 9, 2025
- Vendor
- New H3C Technologies Co., Ltd.
- Product
- GR-1800AX
- Classifications
- CWE-120, T1190
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- May 8, 2025CVE publishedPublication date reported by the CVE source.
- May 9, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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- Affected versionversion=100R008
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
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Your stack
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