Vulnerability · Published Jun 1, 2026 · Assigned by VulDB

CVE-2026-10259H3C Magic B0 aspForm SetMobileAPInfoById stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in Magic B0 from H3C. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 58.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A security vulnerability has been detected in H3C Magic B0 up to 100R002. The affected element is the function SetMobileAPInfoById of the file /goform/aspForm. Such manipulation of the argument param leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
H3C	Magic B0	100R002

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-367539 | H3C Magic B0 aspForm SetMobileAPInfoById stack-based overflow vdb-entry, technical-description
VDB-367539 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-10259 | CVE Analysis and Report third-party-advisory
Submit #824402 | H3C Magic B0 <=100R002 Buffer Overflow third-party-advisory
https://github.com/666324/H3C-Magic-B0-vuln related
https://github.com/666324/H3C-Magic-B0-vuln/tree/main/H3C-Magic%20B0-vuln exploit