CVE-2023-6095
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 · uneditedVladimir Kononovich, a Security Researcher has found a flaw that allows for a remote code execution on the DVR. An attacker could inject malicious HTTP headers into request packets to execute arbitrary code. The manufacturer has released patch firmware for the flaw, please refer to the manufacturer's report for details and workarounds.
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 remote code execution vulnerability in DVR devices allows attackers to inject malicious HTTP headers into request packets, enabling arbitrary code execution on the affected device. The vulnerability is network-exploitable with high impact, as indicated by the 8.9 CVSS score.
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
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/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.
-
Identify DVR devices on your networkScan your network for devices running DVR firmware by checking for open ports commonly used by DVR systems (e.g., ports 80, 443, 554, 8000, 8080). Use network scanning tools like Nmap to discover devices: nmap -p 80,443,554,8000,8080 -sV <network_range>Affected if Any DVR device with an exposed HTTP management interface is potentially affected
-
Determine the DVR make, model, and firmware versionAccess the DVR web interface (if accessible) and navigate to the system information or about page. Alternatively, check the device label, documentation, or the manufacturer's support website for the specific model number and current firmware versionAffected if The device cannot confirm it has been patched to a version that addresses CVE-2023-6095
-
Verify HTTP management interface is network-accessibleCheck if port 80, 443, or other HTTP ports on the DVR are exposed to the internet or untrusted networks. Use external scanning tools or review firewall rules: nmap -p 80,443,8080 <DVR_IP>Affected if The HTTP management interface is accessible from untrusted networks without authentication barriers
-
Inspect HTTP traffic logs for suspicious header injectionReview HTTP access logs on the DVR (if available) or upstream proxy/firewall logs for requests containing unusually long or encoded HTTP headers, especially X-Forwarded-For, User-Agent, or custom headers with potential payloadsAffected if Logs show HTTP requests with malformed or injectionAttempt headers that differ from normal client behavior
-
Check for signs of unauthorized access or code executionReview system logs, authentication logs, and any available audit trails on the DVR for unexpected commands, new user accounts, or processes that were not initiated by legitimate administratorsAffected if Evidence exists of unauthorized commands, unexpected processes, or modifications to system files
A user is affected if they have a DVR device with an accessible HTTP management interface that has not been confirmed patched for CVE-2023-6095 header injection vulnerability
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 the manufacturer's patch firmware to all affected DVR devices as soon as possible. If patching is not immediately feasible, restrict network access to DVR management interfaces and monitor for suspicious HTTP traffic.
- 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-2023-6095 — 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-2023-6095 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