CVE-2026-4488
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability was identified in UTT HiPER 1250GW up to 3.2.7-210907-180535. Affected is the function strcpy of the file /goform/setSysAdm. Such manipulation of the argument GroupName leads to buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA buffer overflow vulnerability exists in the UTT HiPER 1250GW router web interface. The strcpy function in /goform/setSysAdm copies the user-controlled GroupName parameter without bounds checking, allowing an attacker to overflow the destination buffer. This is remotely exploitable via the web interface.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify device modelAccess the router web interface or check the device label/marketing material to confirm the model is UTT HiPER 1250GWAffected if Device is not a UTT HiPER 1250GW router (different models are not affected by this CVE)
-
Check firmware versionLog into the router administrative interface and navigate to the system status or firmware information page to find the installed firmware version string (e.g., 3.2.7-210907-180535 or similar)Affected if Firmware version is 3.2.7-210907-180535 or any earlier version (the vulnerability exists up to and including this version)
-
Verify web interface is network accessibleAttempt to access the router web interface over HTTP/HTTPS from a remote network location, or check firewall/router NAT rules for port forwards pointing to the device management port (typically 80 or 443)Affected if The /goform/setSysAdm endpoint is reachable from untrusted networks (the vulnerability is remotely exploitable)
-
Check remote administration statusIn the router admin panel, locate the remote management or administration settings (often under Advanced, System, or Security sections) and determine if remote access is enabled for the WAN interfaceAffected if Remote administration is enabled and the management interface is exposed to WAN
A user is affected if they own a UTT HiPER 1250GW router running firmware version 3.2.7-210907-180535 or earlier, and the router administrative web interface is accessible from untrusted networks.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataReplace unbounded strcpy calls with safe alternatives (strncpy, strlcpy) and implement strict input length validation on the GroupName parameter. If vendor firmware update is available, apply it.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-4488 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-4488 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data