CVE-2026-29116
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 has been found in some Dahua products could allow an unauthenticated remote attacker to send a specially crafted packet, triggering an exception that causes the system to reboot unexpectedly, resulting in a denial of service.
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 confidenceThis is an unauthenticated remote denial of service vulnerability in Dahua products (specific models unspecified). An attacker can send a specially crafted packet that triggers an exception, causing the device to unexpectedly reboot and become unavailable.
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
- Low
- Privileges
- None
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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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Confirm Dahua product presenceIdentify if any network devices on your network are manufactured by Dahua (look for Dahua branding, check device metadata via network scanning tools, or review asset inventory)Affected if Any Dahua device is present in the environment
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Determine device firmware versionAccess the device web interface, use the Dahua Config Tool, or query the device via ONVIF/SNMP to retrieve the current firmware versionAffected if The installed firmware version matches or predates the affected version range (if known) or cannot be determined to be patched
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Verify network accessibility of Dahua devicesScan network ranges for Dahua device IP addresses and check if management ports (HTTP/HTTPS typically ports 80/443) are exposed to untrusted networksAffected if Dahua devices are directly accessible from untrusted networks or the internet without firewall restrictions
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Check for recent unexpected rebootsReview device logs, network monitoring tools, or syslog servers for evidence of unexplained device reboots or restart eventsAffected if Multiple devices exhibit unexplained reboot patterns consistent with denial of service
You are affected if you have Dahua devices with firmware versions within the vulnerable range that are network-accessible to unauthenticated attackers, or if you observe unexplained reboot events on Dahua devices in your environment.
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 dataContact Dahua for firmware updates addressing this vulnerability. As an interim measure, restrict network access to affected devices using firewalls or network segmentation to prevent unauthenticated attackers from reaching them.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-29116 — 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-2026-29116 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
- No spam, self-promotion, credentials, or personal data