CVE-2026-27521
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 · uneditedBinardat 10G08-0800GSM network switch firmware version V300SP10260209 and prior do not implement rate limiting or account lockout on failed login attempts, enabling brute-force attacks against user credentials.
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 · high confidenceThe Binardat 10G08-0800GSM network switch firmware lacks rate limiting on authentication attempts and does not implement account lockout after failed logins, allowing attackers to systematically guess credentials via brute-force attacks against the login interface.
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<= V300SP10260209CVSS 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
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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 device model and firmware versionAccess the switch management interface (web GUI or CLI) and navigate to System Information or Device Status to view the exact model number and firmware version string. Compare the firmware version to V300SP10260209 - any version equal to or lower than this is affected.Affected if Device is Binardat 10G08-0800GSM and firmware version is <= V300SP10260209
-
Check authentication rate limiting configurationIn the switch web GUI, go to Security or AAA settings. Look for fields labeled 'Rate Limit', 'Login Rate', 'Authentication Rate Limit', or similar. Verify if any throttling is configured on authentication attempts.Affected if Rate limiting on authentication attempts is not configured or is set to 'unlimited'/'disabled'
-
Check account lockout policy settingsIn the switch management interface under Security or Account settings, locate any 'Account Lockout', 'Login Attempts', or 'Max Failed Logins' options. Verify whether a lockout threshold and duration are defined.Affected if Account lockout after failed login attempts is not configured or is disabled
-
Verify network exposure of login interfaceCheck firewall rules, ACLs, or network segmentation surrounding the switch. Determine if the management login interface (HTTP/HTTPS/SSH) is accessible from untrusted networks or the internet.Affected if Login interface is directly exposed to untrusted networks without firewall or VPN protection
You are affected if you have a Binardat 10G08-0800GSM switch running firmware <= V300SP10260209 and authentication rate limiting and account lockout are both disabled or not configurable in your version.
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 dataImplement account lockout policies after a configurable number of failed login attempts and add rate limiting to throttle authentication requests; if firmware update is unavailable, restrict login access via firewall rules or VPN.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-27521 — 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-2026-27521 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