PT-2025-41213 · Tenda · Tenda Ch22

Li Hu · Published 2025-09-30 · Updated 2025-10-13 · CVE-2025-11423

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda CH22 version 1.0.0.1

Description A memory corruption issue exists in the formSafeEmailFilter() function of the Tenda CH22 microprogram. This can be triggered by manipulating the page parameter in an HTTP request, allowing a remote attacker to execute arbitrary code. The exploit code has been publicly released.

Recommendations Restrict access to the affected device. Consider temporarily disabling the SafeEmailFilter functionality until a fix is available.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2025-12563

CVE-2025-11423

Affected Products

Tenda Ch22

References · 14

• 🔥 https://github.com/f000x0/cve/issues/7 · Exploit
• https://osv.dev/vulnerability/CVE-2025-11423 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12563 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-11423 · Security Note
• https://twitter.com/0dayPublishing/status/1975749003229774302 · Twitter Post
• https://vuldb.com/?submit.666009 · Note
• https://t.me/CVEtracker/34399 · Telegram Post
• https://vuldb.com/?ctiid.327358 · Note
• https://twitter.com/cracbot/status/1977690825661219133 · Twitter Post
• https://tenda.com.cn · Note
• https://twitter.com/offseq/status/1975758856165666977 · Twitter Post
• https://twitter.com/CVEnew/status/1975763497209278800 · Twitter Post
• https://vuldb.com/?id.327358 · Note
• https://t.me/cveNotify/137752 · Telegram Post