CVE-2026-1741
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 determined in EFM ipTIME A8004T 14.18.2. Affected is the function httpcon_check_session_url of the file /sess-bin/d.cgi of the component Debug Interface. This manipulation of the argument cmd causes backdoor. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
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 · moderate confidenceA backdoor vulnerability exists in the debug interface of ipTIME A8004T routers (v14.18.2). The httpcon_check_session_url function in /sess-bin/d.cgi allows manipulation of the cmd parameter to activate a backdoor, enabling remote code execution. The attack is remotely initiable but has high complexity and difficult exploitability.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 14.18.2CVSS 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
- High
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:H/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.
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Identify device modelAccess the router admin interface or check the device label/menu to confirm the exact model is ipTIME A8004TAffected if Device is not an A8004T model - different models are not affected by this specific CVE
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Check firmware versionNavigate to router admin interface (typically 192.168.0.1) > System or Firmware section, or use command 'cat /proc/firmware_version' via telnet/SSH if available, to determine installed firmware versionAffected if Firmware version is exactly 14.18.2 - only this specific version is affected
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Verify debug interface accessibilityAttempt to access the URI /sess-bin/d.cgi on the router's web server port (typically port 80 or 443) from an internal network locationAffected if The /sess-bin/d.cgi endpoint responds or is reachable - indicates debug interface is exposed
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Check for suspicious debug parametersInspect HTTP traffic or web server logs for requests to d.cgi containing unusual cmd parameter values, or examine if the router responds to debug commandsAffected if Requests to d.cgi with cmd parameter are observed or debug responses are received - may indicate backdoor probing or exploitation attempts
The environment is affected only if the device is specifically an ipTIME A8004T router running firmware version 14.18.2 AND the debug interface at /sess-bin/d.cgi is accessible on the network.
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 dataSince the vendor is unresponsive and no patch is available, disable or restrict access to the debug interface via network segmentation or firewall rules. If the debug interface cannot be disabled, consider replacing the device. Monitor for unauthorized access attempts.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-1741 — 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-2026-1741 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
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- Version or environment caveats, and links to real fixes
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