PatchTheCVECVE-2025-41758: A low-privileged remote attacker can exploit an arbitrary file write vulnerability in the wwupload.cgi endpoin
CVE-2025-41758 is a high-severity flaw (CVSS 8.8) affecting universal bacnet router firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A low-privileged remote attacker can exploit an arbitrary file write vulnerability in the wwupload.cgi endpoint. Due to path traversal this can lead to overwriting arbitrary files on the device and achieving a full system compromise.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.6% (top 53%) |
| CISA exploited list | No |
| Weakness | CWE-22 |
| Published | 2026-03-09 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-41758?
universal bacnet router firmware: upgrade to 6.0.1.0. Exact commands for each OS are on this page.
Is CVE-2025-41758 being exploited?
CVE-2025-41758 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-41758 affect?
CVE-2025-41758 affects universal bacnet router firmware. Severity is high (CVSS 8.8). A low-privileged remote attacker can exploit an arbitrary file write vulnerability in the wwupload.cgi endpoint. Due to path traversal this can lead to overwriting arbitrary files on the device and achieving a full system compromise.
How urgent is CVE-2025-41758?
Priority 43/100. High severity
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- CVE-2025-41766 HIGH 8.8 UPGRADE A low-privileged remote attacker can trigger a stack-based buffer overflow via a crafted HTTP POST request usi
- CVE-2025-41765 CRITICAL 9.1 UPGRADE Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupload.cgi e
- CVE-2025-41764 CRITICAL 9.1 UPGRADE Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupdate.cgi e