CVE-2026-2086
Published: 07 February 2026
Summary
CVE-2026-2086 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Utt 810G Firmware. Its CVSS base score is 7.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 45.0th percentile by exploit likelihood (below the median); 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
CVE-2026-2086 is a buffer overflow vulnerability in the UTT HiPER 810G device, affecting versions up to 1.7.7-171114. The flaw exists in the strcpy function of the /goform/formFireWall file within the Management Interface component, triggered by manipulation of the GroupName argument.
The vulnerability enables remote exploitation by attackers with low privileges (PR:L), as indicated by its CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Successful attacks can result in high impacts to confidentiality, integrity, and availability, with a public exploit available for use.
Advisories referenced in GitHub issues (alc9700jmo/CVE/issues/22) and VulDB entries (ctiid.344653, id.344653) detail the issue but note that the vendor was contacted early without response. No patches or specific mitigations are mentioned.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-5727
Vulnerability details
A vulnerability was detected in UTT HiPER 810G up to 1.7.7-171114. Affected by this vulnerability is the function strcpy of the file /goform/formFireWall of the component Management Interface. The manipulation of the argument GroupName results in buffer overflow. The attack…
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can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Buffer overflow in public-facing web management interface (/goform/formFireWall) enables remote code execution via exploitation of public-facing application.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly enforces validation of the GroupName argument in the /goform/formFireWall management interface to prevent buffer overflow from malicious input.
Implements memory protections like stack canaries, ASLR, and DEP to mitigate exploitation of the strcpy buffer overflow vulnerability.
Mandates timely flaw remediation for vulnerabilities like CVE-2026-2086, including patching or workarounds despite lack of vendor response.