CVE-2026-30802
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 · uneditedOut-of-bounds Read vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers.This issue affects Connext Micro: from 4.0.0 before 4.3.0, from 2.4.5 before 2.4.*.
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 confidenceAn out-of-bounds read vulnerability in RTI Connext Micro core libraries allows reading beyond allocated buffer boundaries, potentially exposing sensitive memory contents or facilitating further exploitation.
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>= 2.4.5, < 4.3.0CVSS 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
- Low
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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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Locate RTI Connext Micro installationSearch for RTI Connext Micro binaries, libraries, or installation directories on the system. Common locations include /opt/rti, /usr/local/rti, or Program Files\RTI on Windows. Look for files named libnddscore.so, nddscore.dll, or similar RTI library files.Affected if RTI Connext Micro is found on the system
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Identify installed versionExamine the version information of the RTI Connext Micro libraries or executables. This may be in a VERSION file within the installation directory, embedded in the binary metadata, or obtainable via a command like 'strings' on library files or 'file' command output. Check for version strings like 4.x.x or 2.4.x.Affected if Unable to determine the version number
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Compare version against affected rangeCheck if the installed version is 2.4.5 or higher but below 4.3.0. Versions 2.4.5 through 4.2.x are affected. Versions below 2.4.5 or 4.3.0 and later are not affected.Affected if Installed version is >= 2.4.5 and < 4.3.0
The environment is affected if RTI Connext Micro version 2.4.5 through 4.2.x (or any 2.4.x version below the patched release) is installed and in use.
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 · scoped4.3.0
Upgrade RTI Connext Micro to version 4.3.0 or later, or to the patched 2.4.x release (2.4.*) to remediate this buffer overread vulnerability.
Connext Micro 4.3.0 or later (for 4.x users); latest secure 2.4.x release (for 2.4.x users)
- 1. Identify the currently installed RTI Connext Micro version using your application's build configuration or runtime detection
- 2. For versions 4.0.0 through 4.2.x: upgrade to version 4.3.0 or later
- 3. For versions 2.4.5 through 2.4.y: upgrade to the latest 2.4.z version that includes the security fix
- 4. Verify the upgrade by confirming the out-of-bounds read vulnerability is resolved in the release notes
- 5. Test the upgraded Connext Micro library in your integration environment before production deployment
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing12.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,720.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-30802 — 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-2026-30802 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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