CVE-2026-58454
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 · uneditedJAIOTlink C492A-W6 Wi-Fi IP cameras running firmware 4.8.30.57701411 contain a remote code execution vulnerability that allows authenticated attackers to execute arbitrary shell scripts by writing to the writable persistent JFFS2 storage path and triggering execution through the authenticated HTTP endpoint. Attackers can stage a malicious script in the writable persistent storage and request the config endpoint to invoke it via popen(), achieving persistent remote code execution that survives device reboots.
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 confidenceJAIOTlink C492A-W6 Wi-Fi IP cameras running firmware 4.8.30.57701411 have an authenticated RCE vulnerability in the config HTTP endpoint. Authenticated attackers can write malicious shell scripts to the writable persistent JFFS2 storage and achieve execution through a popen() call in the config endpoint, enabling persistent remote code execution that survives device reboots.
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
- High
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/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.
-
Confirm device modelIdentify the device through its web interface, DHCP fingerprint, or physical labeling. Look for 'JAIOTlink' or 'C492A-W6' identifiers in the device UI, network scan results, or product documentation.Affected if The device is a JAIOTlink C492A-W6 Wi-Fi IP camera
-
Check firmware versionAccess the camera web interface and navigate to System Settings, About, or Firmware Information page to view the installed firmware version. Alternatively, check via ONVIF probe or manufacturer API if available.Affected if Firmware version is 4.8.30.57701411
-
Verify config HTTP endpoint accessibilityAttempt to access the /config or equivalent configuration endpoint on the camera's HTTP interface. This typically requires authentication credentials.Affected if The config HTTP endpoint is reachable and accepts authentication credentials
-
Check network exposure of the management interfaceScan the camera's IP address for open HTTP/HTTPS ports (typically 80, 443, 8080). Determine if the interface is exposed to untrusted networks or the internet by reviewing firewall rules, NAT configurations, or VLAN placement.Affected if The camera HTTP management interface is accessible from untrusted networks without network segmentation
-
Check JFFS2 storage writabilityIf you have shell access (via debug telnet/ssh or UART), attempt to write a test file to a known JFFS2 mount point such as /jffs or /mnt/jffs2. Observe if the write operation succeeds.Affected if JFFS2 persistent storage is writable by authenticated users
A user is affected if they have a JAIOTlink C492A-W6 camera running firmware 4.8.30.57701411 with the config HTTP endpoint exposed to an attacker who can obtain valid credentials.
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 dataApply vendor firmware patch when available; restrict camera network access to trusted users and networks to reduce attack surface until patch is deployed.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-58454 — 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-2026-58454 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