CVE-2026-33444
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 · uneditedCVE-2026-33444 is a memory management vulnerability in Secure Access servers prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can create a non-persistent DoS against the server.
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 a memory management vulnerability in Secure Access servers running versions prior to 14.55. An attacker with intimate knowledge of and total control over the tunnel protocol can exploit improper memory handling to cause a non-persistent denial of service, crashing or rendering the server unavailable until service is restarted.
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:L/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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Identify Secure Access server versionLocate the Secure Access server installation and retrieve its version number, typically via the server management console, software inventory, or running 'secureaccess -v' or 'show version' command if available in the product CLIAffected if The installed version is below 14.55 (e.g., 14.54, 14.x lower than 55, or any earlier major version)
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Confirm tunnel protocol is configuredInspect the Secure Access server configuration for tunnel protocol settings, typically found in network/tunnel configuration files or the server management interface where tunnel endpoints are definedAffected if The tunnel protocol feature is actively configured or enabled on the server
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Check server service statusVerify the Secure Access service is currently running, using system commands like 'systemctl status secureaccess' or 'service secureaccess status' depending on the operating systemAffected if The service is running and accepting tunnel connections (vulnerability is only exploitable when the service is active)
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Review access controls on tunnel interfaceExamine network access controls, firewall rules, or authentication policies governing who can access the tunnel protocol interface, noting that the CVE requires an attacker with intimate knowledge and total control over the tunnelAffected if The tunnel interface is exposed to untrusted or insufficiently controlled network access
You are affected if your Secure Access server runs any version prior to 14.55 AND the tunnel protocol feature is enabled and accessible, as the vulnerability can be triggered by an attacker with control over the tunnel to cause a denial of service.
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 dataUpgrade Secure Access servers to version 14.55 or later to obtain the vendor patch addressing this memory management flaw.
- Consultation4.0 h
- Implementation4.0 h
- Testing6.0 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 $4,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-33444 — 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-2026-33444 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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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