CVE Alert: CVE-2025-11305 – UTT – HiPER 840G
CVE-2025-11305
A vulnerability has been found in UTT HiPER 840G up to 3.1.1-190328. Affected by this issue is the function strcpy of the file /goform/formTaskEdit. The manipulation of the argument txtMin2 leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
AI Summary Analysis
Risk verdict
High risk: remote, unauthenticated code execution is feasible due to a buffer overflow in a network-facing component, with public exploit activity detected.
Why this matters
Successful exploitation can grant full control over affected devices, enabling data theft, device takeover, or lateral movement within the network. The combination of remote access, high impact on confidentiality/integrity/availability, and public disclosure heightens the likelihood of active exploitation in the wild.
Most likely attack path
An attacker can target the input handling endpoint (formTaskEdit) over the network, sending crafted data in txtMin2 to trigger a strcpy overflow. The CVSS profile shows no user interaction required (UI:N) and low-privilege preconditions (PR:L), with remote access possible (AV:N), leading to complete control and high impact (C/I/A). Exploitation can occur without user initiation, and scope remains unchanged, increasing potential for rapid compromise on exposed devices.
Who is most exposed
Devices deployed as network-connected embedded systems or appliances using this platform, particularly where remote management interfaces or open network exposure exist, are at highest risk.
Detection ideas
- Sudden device crashes/reboots or memory fault symptoms in logs.
- Attempts to access /goform/formTaskEdit with abnormal or oversized txtMin2 values.
- Unusual or sustained network activity toward the affected endpoint from external sources.
- Post-exploitation indicators: unusual process integrity changes or unsigned binaries.
- IOCs or patterns linked to publicly disclosed exploit signatures.
Mitigation and prioritisation
- Apply the vendor patch or upgrade to an unpatched version once fixed; verify firmware integrity after update.
- Restrict network access to the vulnerable endpoint; disable remote management if not required; implement network segmentation.
- Deploy input validation and runtime protections if feasible; enable anomaly detection on critical input fields.
- Monitor for crash dumps, memory corruption indicators, and anomalous device behaviour; collect CTI indicators for ongoing IOC tracking.
- If KEV or EPSS signals exist, elevate to priority 1; otherwise treat as high-priority remediation with a tight patch window.
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