CVE-2022-40990
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 · uneditedSeveral stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020. A specially-crafted network packet can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger these vulnerabilities.This buffer overflow is in the function that manages the 'no bandwidth WORD dlrate <1-9999> dlceil <1-9999> ulrate <1-9999> ulceil <1-9999> priority (highest|high|normal|low|lowest)' command template.
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 confidenceA stack-based buffer overflow exists in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD firmware. The vulnerability is specifically in the handler for the 'no bandwidth WORD dlrate <1-9999> dlceil <1-9999> ulrate <1-9999> ulceil <1-9999> priority' command template. Attackers can send specially-crafted network packets to overflow the stack buffer and achieve arbitrary command execution.
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= g5.0.1.5-210720-141020CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.
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Identify device modelAccess the device management interface or check device labeling to confirm it is a Siretta QUARTZ-GOLD routerAffected if The device is not a Siretta QUARTZ-GOLD model, the vulnerability does not apply
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Check firmware versionAccess the device's web interface or CLI and navigate to the firmware/version information section, or use the 'show version' command via console/Telnet/SSH if DetranCLI is accessibleAffected if The installed firmware version is g5.0.1.5-210720-141020 exactly (the only version listed as affected)
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Verify DetranCLI interface accessibilityAttempt to access the DetranCLI command interface via console, Telnet, or SSH on the device. Check if the CLI is listening on any network interfaceAffected if DetranCLI is exposed and accessible to untrusted network segments, enabling external attackers to send malicious command payloads
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Confirm bandwidth command handler exposureIf DetranCLI is accessible, verify the 'no bandwidth' command template exists by attempting to enter the command context or reviewing available command optionsAffected if The 'no bandwidth WORD dlrate...' command template is present and executable through DetranCLI, meaning the vulnerable handler is enabled
You are affected if you have a Siretta QUARTZ-GOLD device running firmware version g5.0.1.5-210720-141020 with DetranCLI accessible to the network or untrusted users.
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 vendor firmware updates when available. Until then, restrict network access to the device's management interface using firewall rules or network segmentation to prevent untrusted attackers from sending malicious packets.
- Consultation8.0 h
- Implementation4.0 h
- Testing16.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-40990 — 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-2022-40990 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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- Version or environment caveats, and links to real fixes
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