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CVE-2025-11423 โ€” AI Deep Analysis Summary

CVSS 9.8 ยท Critical

Q1What is this vulnerability? (Essence + Consequences)

๐Ÿšจ **Essence**: Tenda CH22 has a **Buffer Overflow** vulnerability. ๐Ÿ“‰ **Consequences**: Memory corruption occurs due to improper handling of the `page` parameter in `/goform/SafeEmailFilter`.โ€ฆ

Q2Root Cause? (CWE/Flaw)

๐Ÿ›ก๏ธ **CWE**: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer).โ€ฆ

Q3Who is affected? (Versions/Components)

๐Ÿข **Vendor**: Tenda (China). ๐Ÿ“ฆ **Product**: CH22 Router. ๐Ÿ“… **Affected Version**: **1.0.0.1** specifically. Check your firmware version immediately!

Q4What can hackers do? (Privileges/Data)

๐Ÿ’€ **Impact**: CVSS Score is **High (9.8)**. ๐ŸŽฏ **Capabilities**: Attackers can achieve **Complete Confidentiality**, **Integrity**, and **Availability** loss. Essentially, **full system control** is possible.

Q5Is exploitation threshold high? (Auth/Config)

โšก **Threshold**: **LOW**. ๐ŸŒ **Network**: Attack Vector is **Network (AV:N)**. ๐Ÿ”‘ **Auth**: **No Privileges Required (PR:N)**. ๐Ÿ–ฑ๏ธ **User Interaction**: **None (UI:N)**. You can exploit this remotely without logging in.

Q6Is there a public Exp? (PoC/Wild Exploitation)

๐Ÿ”“ **Exploit Status**: Public references exist on GitHub and VDB. ๐Ÿ“‚ **Tags**: Marked as `exploit` and `issue-tracking`.โ€ฆ

Q7How to self-check? (Features/Scanning)

๐Ÿ” **Self-Check**: Scan for Tenda CH22 devices. ๐Ÿ“ก **Target**: Look for requests to `/goform/SafeEmailFilter`.โ€ฆ

Q8Is it fixed officially? (Patch/Mitigation)

๐Ÿฉน **Patch Status**: The data does not explicitly confirm a fixed version. โš ๏ธ **Action**: Visit the official Tenda website or check VDB-327358 for the latest patch notes. Assume it is **unpatched** until confirmed.

Q9What if no patch? (Workaround)

๐Ÿšง **Workaround**: If no patch is available, **restrict network access** to the management interface. ๐Ÿšซ **Block**: Block external access to port 80/443 and the `/goform/` endpoints.โ€ฆ

Q10Is it urgent? (Priority Suggestion)

๐Ÿ”ฅ **Urgency**: **CRITICAL**. ๐Ÿšจ **Priority**: **Immediate Action Required**. With a CVSS of 9.8 and no auth required, this is a **high-priority** vulnerability. Patch or isolate immediately!