A vulnerability was identified in Tenda CH22 1.0.0.1. (CVE-2025-9813)
A buffer overflow vulnerability exists in the Tenda CH22 firmware version 1.0.0.1 in the formSetSambaConf function via the samba_userNameSda argument. This flaw can be exploited remotely and has a high severity score of 8.8. Public exploit code is available, but there is no information on an official patch or remediation.
AI Analysis
Technical Summary
CVE-2025-9813 is a remote buffer overflow vulnerability in Tenda CH22 version 1.0.0.1 affecting the formSetSambaConf function in the /goform/SetSambaConf endpoint. The vulnerability arises from improper handling of the samba_userNameSda argument, allowing an attacker to overflow a buffer remotely. The vulnerability has a CVSS v3.1 score of 8.8 (high) with network attack vector, low attack complexity, requiring low privileges and no user interaction, impacting confidentiality, integrity, and availability. Public exploit code exists, but no vendor advisory or patch information is provided.
Potential Impact
Successful exploitation can lead to remote code execution or denial of service due to buffer overflow, compromising confidentiality, integrity, and availability of the affected device. The vulnerability can be triggered remotely with low complexity and minimal privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting network access to the vulnerable endpoint or disabling Samba services if feasible to reduce exposure.
A vulnerability was identified in Tenda CH22 1.0.0.1. (CVE-2025-9813)
Description
A buffer overflow vulnerability exists in the Tenda CH22 firmware version 1.0.0.1 in the formSetSambaConf function via the samba_userNameSda argument. This flaw can be exploited remotely and has a high severity score of 8.8. Public exploit code is available, but there is no information on an official patch or remediation.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-9813 is a remote buffer overflow vulnerability in Tenda CH22 version 1.0.0.1 affecting the formSetSambaConf function in the /goform/SetSambaConf endpoint. The vulnerability arises from improper handling of the samba_userNameSda argument, allowing an attacker to overflow a buffer remotely. The vulnerability has a CVSS v3.1 score of 8.8 (high) with network attack vector, low attack complexity, requiring low privileges and no user interaction, impacting confidentiality, integrity, and availability. Public exploit code exists, but no vendor advisory or patch information is provided.
Potential Impact
Successful exploitation can lead to remote code execution or denial of service due to buffer overflow, compromising confidentiality, integrity, and availability of the affected device. The vulnerability can be triggered remotely with low complexity and minimal privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting network access to the vulnerable endpoint or disabling Samba services if feasible to reduce exposure.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-4c98-xmr9-5fq8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-9813"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab74f36f7a7c54106e138d6
Added to database: 09/26/2026, 04:51:02 UTC
Last enriched: 09/26/2026, 04:59:12 UTC
Last updated: 09/27/2026, 02:40:47 UTC
Views: 17
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.