CVE-2026-30815
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 · uneditedAn OS command injection vulnerability in the OpenVPN module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to execute system commands when a specially crafted configuration file is processed due to insufficient input validation. Successful exploitation may allow modification of configuration files, disclosure of sensitive information, or further compromise of device integrity. This issue affects AX53 v1.0: before 1.7.1 Build 20260213.
In the news
Third-party coverageSurfaced from public web coverage — external links open in a new tab.
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 confidenceOS command injection vulnerability in the OpenVPN module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to execute arbitrary system commands by submitting a specially crafted configuration file. The root cause is insufficient input validation when the device processes the configuration, enabling the attacker to break out of intended command boundaries and inject OS-level commands.
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< 1.7.1CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/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.
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Identify device model and firmware versionAccess the router admin interface (typically at 192.168.0.1) and navigate to System > Firmware Upgrade or Status page to view the current firmware version. Alternatively, check via command line if you have SSH/telnet access to the router.Affected if The firmware version is listed as below 1.7.1 (for example, 1.6.0, 1.5.x, or earlier)
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Verify OpenVPN module is enabledLog into the router web interface and navigate to Advanced > VPN > OpenVPN. Check if the OpenVPN server or client functionality is turned on and configured.Affected if OpenVPN is enabled and a configuration profile is active on the device
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Check OpenVPN configuration for suspicious entriesIn the OpenVPN settings page, examine any imported or manually configured OpenVPN configuration files. Look for unexpected characters, backticks, semicolons, or pipe symbols that could indicate command injection payloads.Affected if The OpenVPN configuration contains unusual characters or command separators (such as ;, |, &, or backticks) that were not intentionally added by the administrator
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Assess network accessibility to adjacent attackersReview the router's LAN and WAN access settings. Check if management interfaces are exposed to the local network segment beyond the expected trusted users.Affected if The router admin interface or OpenVPN service is accessible to unauthenticated or untrusted users on the adjacent network
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Review administrator accounts and access logsCheck the router's user management page for any unauthorized admin accounts. If logging is enabled, review authentication logs for suspicious login activity, especially to the VPN configuration areas.Affected if Unknown admin accounts exist or login attempts to VPN configuration pages originate from unexpected IP addresses
You are affected if your TP-Link Archer AX53 runs firmware version below 1.7.1 AND has OpenVPN enabled with a configuration that could be accessed by adjacent authenticated 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.
dbcve · scoped1.7.1
Update the device firmware to version 1.7.1 Build 20260213 or later to patch the vulnerability. As an interim control, restrict network adjacency access to the device and minimize the number of users with authenticated access to the OpenVPN configuration interface.
Archer AX53 v1.0 firmware 1.7.1 Build 20260213
- Visit the official TP-Link support website at www.tp-link.com and navigate to the Archer AX53 v1 download page
- Download firmware version 1.7.1 Build 20260213 (or any version >= 1.7.1)
- Access the router's web management interface via a browser
- Log in with administrative credentials
- Navigate to System > Firmware Upgrade (or Advanced > System > Firmware Upgrade)
- Click the option to upgrade via file upload
- Select the downloaded firmware file and confirm the upgrade
- Wait for the upload to complete and the router to automatically reboot - do not power off during this process
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-30815 — 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-2026-30815 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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