CVE-2025-7418
Published: 10 July 2025
Summary
CVE-2025-7418 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda O3 Firmware. Its CVSS base score is 7.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 18.1% 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 are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Deeper analysis
A stack-based buffer overflow vulnerability exists in the Tenda O3V2 firmware version 1.0.0.12(3880). It resides in the fromPingResultGet function within the /goform/setPing endpoint of the httpd component and is triggered by unsanitized input to the destIP argument. The issue is tracked as CVE-2025-7418, carries a CVSS 4.0 score of 7.4, and is also associated with CWE-119 and CWE-121.
An authenticated remote attacker can supply a crafted destIP value to the affected endpoint and trigger the overflow, resulting in arbitrary code execution or a denial of service. Public proof-of-concept code has been released, confirming that exploitation requires only network access and valid credentials for the device.
The EPSS score remains flat at 0.0157 with no material increase after disclosure. Available references consist solely of public vulnerability disclosures and proof-of-concept repositories; no vendor advisory or patch information is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-21088
Vulnerability details
A vulnerability was found in Tenda O3V2 1.0.0.12(3880) and classified as critical. Affected by this issue is the function fromPingResultGet of the file /goform/setPing of the component httpd. The manipulation of the argument destIP leads to stack-based buffer overflow. The…
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attack may be launched remotely. The exploit has been disclosed to the public and may be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The CVE describes a remotely exploitable stack-based buffer overflow in the httpd web interface (/goform/setPing) of the Tenda O3V2 router, enabling adversaries to gain initial access by exploiting a public-facing application. Public PoC available.
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
SI-10 requires validation of inputs like the destIP argument at the /goform/setPing endpoint, directly preventing the stack-based buffer overflow from improper input handling.
SI-2 mandates identification, reporting, and correction of flaws such as this publicly disclosed buffer overflow vulnerability through timely patching and vulnerability scanning.
SI-16 implements memory safeguards like stack canaries or DEP to protect against exploitation of stack-based buffer overflows leading to arbitrary code execution.