PT-2025-39361 · H3C · H3C Magic B3

Qmssdxn · Published 2025-09-10 · Updated 2025-11-14 · CVE-2025-10942

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions H3C Magic B3 versions up to 100R002

Description A flaw exists in H3C Magic B3 that allows for remote buffer overflow. The issue is related to the AddMacList function within the /goform/aspForm file. Manipulation of the param argument can trigger the overflow. The exploit is publicly available.

Recommendations Versions up to 100R002 should be updated to a newer, secure version when available. As a temporary workaround, consider restricting access to the /goform/aspForm file. Avoid using the param argument in the AddMacList function until the issue is resolved.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2026-02068

CVE-2025-10942

Affected Products

H3C Magic B3

References · 13

• 🔥 https://github.com/lin-3-start/lin-cve/blob/main/H3C%2BMagic%2BB3/H3C%20routers%20Buffer%20overflow.md · Exploit
• 🔥 https://github.com/lin-3-start/lin-cve/blob/main/H3C%2BMagic%2BB3/H3C%20routers%20Buffer%20overflow.md#poc · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-10942 · Security Note
• https://bdu.fstec.ru/vul/2026-02068 · Security Note
• https://t.me/CVEtracker/33311 · Telegram Post
• https://vuldb.com/?id.325812 · Note
• https://t.me/cveNotify/136374 · Telegram Post
• https://vuldb.com/?submit.684667 · Note
• https://vuldb.com/?ctiid.325812 · Note
• https://twitter.com/CVEnew/status/1971175020597531106 · Twitter Post
• https://t.me/cveNotify/142772 · Telegram Post
• https://vuldb.com/?submit.651813 · Note
• https://twitter.com/CveFindCom/status/1971177668134490340 · Twitter Post