CVE-2026-49201
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 · uneditedThe upload.cgi binary, responsible for processing device backups, contains a hardcoded AES encryption key. This allows an attacker to decrypt, modify, and re-encrypt system backups, facilitating persistent backdoor injection.
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 confidenceThe upload.cgi binary used for device backup processing contains a hardcoded AES encryption key in its codebase. This allows any attacker who obtains the key to decrypt captured or intercepted backup files, inject malicious content or backdoors into the backup data, and re-encrypt the modified backup for deployment to the device, achieving persistent compromise.
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<= t7c_gbl_1.01.000055CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 the device modelAccess the device administrative interface or check the device label to confirm the exact model is Acer Wave 7Affected if The device is not an Acer Wave 7 unit, then this specific CVE does not apply
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Check the installed firmware versionNavigate to the device admin panel firmware/version settings, or use the command line to run 'fw_printenv' or check /etc/version on the device filesystemAffected if The firmware version is t7c_gbl_1.01.000055 or any version earlier (numerically lower) than this release
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Verify backup upload functionality existsLocate the upload.cgi binary on the device filesystem, typically found in /www/cgi-bin/ or /usr/lib/cgi-bin/, or check if a backup restore/upload interface is present in the web admin panelAffected if The upload.cgi binary is present and the backup upload/restore feature is enabled on the device
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Assess network accessibility of backup endpointReview firewall rules, port exposures, or network segmentation to determine if the CGI endpoint (typically port 80/443) hosting upload.cgi is reachable from untrusted networksAffected if The backup upload endpoint is exposed to network attackers (LAN or WAN), creating the attack surface described in the CVE
You are affected if you own an Acer Wave 7 device running firmware t7c_gbl_1.01.000055 or earlier, and the backup upload functionality via upload.cgi is network-accessible to potential attackers.
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 the hardcoded AES key with proper cryptographic key management (e.g., hardware security module, secure key storage, or per-device keys), implement integrity verification for backups, and issue firmware updates to all affected devices to remove the exposure.
- Consultation8.0 h
- Implementation24.0 h
- Testing16.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $15,616.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-49201 — 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-2026-49201 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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- 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
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