CVE-2022-46563
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 · uneditedD-Link DIR-882 DIR882A1_FW130B06, DIR-878 DIR_878_FW1.30B08 was discovered to contain a stack overflow via the Password parameter in the SetDynamicDNSSettings module.
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 stack-based buffer overflow vulnerability exists in the SetDynamicDNSSettings module of D-Link DIR-882 (firmware DIR882A1_FW130B06) and DIR-878 (firmware DIR_878_FW1.30B08) routers. The vulnerability stems from insufficient bounds checking on the Password parameter, allowing an attacker to overflow the stack buffer and potentially achieve remote code execution with elevated privileges.
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= 1.30b06CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/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 the router modelLocate the model number on the device label or check the web interface system information page for 'DIR-882' or 'DIR-878'Affected if The device is a D-Link DIR-882 A1 or DIR-878 running the affected firmware
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Check the installed firmware versionLog into the router web interface, navigate to Status or System section, and record the firmware version displayed (for DIR-882 look for '1.30B06', for DIR-878 look for '1.30B08')Affected if Firmware version matches exactly 1.30B06 for DIR-882 or 1.30B08 for DIR-878
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Verify web management interface accessibilityAttempt to access the router's web interface from the network. Check if HTTP/HTTPS ports (typically 80 or 443) are listening on the router's WAN IP addressAffected if The web management interface is accessible from external networks (not just LAN)
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Confirm Dynamic DNS feature is presentIn the router web interface, look for a 'Dynamic DNS' or 'DDNS' section under the Network or Advanced settings. Note whether this settings page loads successfullyAffected if The SetDynamicDNSSettings module is present and accessible in the firmware
You are affected if your device is a D-Link DIR-882 A1 on firmware 1.30B06 or DIR-878 on 1.30B08, and the web management interface (including Dynamic DNS settings) is accessible to the attacker.
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 dataImmediately restrict access to the router's web management interface by disabling remote administration or implementing firewall rules to limit access to trusted IPs. Monitor for vendor firmware updates; if unavailable, consider replacing the affected devices.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-46563 — 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-2022-46563 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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