CVE-2025-29358
Memory Safety in Tenda Rx3 Firmware 16.03.13.11_multi_tde01
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSummary
CVE-2025-29358 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Tenda Rx3 Firmware. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 47% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2025-29358 is a buffer overflow vulnerability (CWE-120) in the Tenda RX3 router firmware version US_RX3V1.0br_V16.03.13.11_multi_TDE01. The flaw occurs in the handling of the firewallEn parameter via the /goform/SetFirewallCfg endpoint, which can be triggered by a specially crafted packet.
Remote attackers can exploit this vulnerability without authentication or user interaction, as indicated by the CVSS v3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (base score 7.5). Successful exploitation results in a Denial of Service (DoS) condition, potentially crashing the device and disrupting network connectivity.
Advisories reference a technical document at https://github.com/2664521593/mycve/blob/main/Tenda/RX3/tenda_rx3_bof_2.pdf (listed twice), which details the vulnerability. No specific patches or mitigation guidance are provided in the available description.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-6268
Vulnerability Data
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the firewallEn parameter at /goform/SetFirewallCfg. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V5.2.1
Mitigating Controls (NIST 800-53 r5) AI
Developer testing and analysis can find missing size checks before deployment.
Input validation directly enforces size checks before buffer copies.
Engineering principles require bounds checking and safe buffer handling in design.
Memory protection limits the impact of an overflow once it occurs.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure development practices directly enforce bounds checking and input validation that prevent classic buffer overflows.
Vulnerability identification processes such as code review or scanning detect classic buffer overflows before exploitation.
Routine patching replaces vulnerable code containing unchecked buffer copies with corrected versions.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Secure coding directly requires bounds-checked memory operations, addressing the root cause of CWE-120.
Security testing in development and acceptance can detect buffer overflows through fuzzing and static analysis, though it does not prevent them at the source.
Secure development life cycle mandates processes that can include input validation and bounds checking to prevent buffer overflows.
Application security requirements can specify input-size validation and safe buffer handling to mitigate classic buffer overflows.
Secure system architecture and engineering principles promote defensive coding patterns that reduce the likelihood of unchecked buffer copies.