CVE-2026-6581 | H3C Magic B1 up to 100R004 /goform/aspForm SetMobileAPInfoById param buffer overflow

VDB-358216 · SUBMIT #790977 · CVE-2026-6581 H3C MAGIC B1 UP TO 100R004 /GOFORM/ASPFORM SETMOBILEAPINFOBYID PARAM BUFFER OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.0 $0-$5k 4.77+ Summaryinfo A vulnerability described as critical has been identified in H3C Magic B1 up to 100R004. Affected by this issue is the function SetMobileAPInfoById of the file /goform/aspForm. Executing a manipulation of the argument param can lead to buffer overflow. This vulnerability is handled as CVE-2026-6581. The attack can be executed remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in H3C Magic B1 up to 100R004. It has been declared as critical. This vulnerability affects the function SetMobileAPInfoById of the file /goform/aspForm. The manipulation of the argument param with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-6581. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor H3C Name Magic B1 Version 100R004 License commercial CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 8.8 VulDB Meta Temp Score: 8.0 VulDB Base Score: 8.8 VulDB Temp Score: 8.0 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: Buffer overflow CWE: CWE-120 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 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 04/19/2026 Advisory disclosed 04/19/2026 +0 days VulDB entry created 04/19/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Not defined CVE: CVE-2026-6581 (🔒) GCVE (CVE): GCVE-0-2026-6581 GCVE (VulDB): GCVE-100-358216 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/19/2026 07:20 Changes: 04/19/2026 07:20 (57) Complete: 🔍 Submitter: kunlun Cache ID: 99:8C1:101 Submitinfo Accepted Submit #790977: New H3C Magic B1 <=100R004 buffer overflow (by kunlun) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸