CVE-2022-40999
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 'gre index <1-8> tunnel A.B.C.D source (A.B.C.D|null) dest A.B.C.D keepalive (on|off) interval (<0-255>|null) retry (<0-255>|null) description (WORD|null)' 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 confidenceStack-based buffer overflow in the DetranCLI GRE command parser of Siretta QUARTZ-GOLD routers. The vulnerability exists in parsing the 'description' (WORD) parameter of the GRE configuration command, where insufficient bounds checking allows overflowing a stack buffer with overly long input, leading to 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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Determine router firmware versionAccess the router's web interface or CLI and locate the firmware version information, typically found in System Status, Administration, or via the 'show version' command in CLIAffected if Running firmware version g5.0.1.5-210720-141020 exactly
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Verify GRE functionality is enabledCheck the router's GRE tunnel configuration via the DetranCLI or web interface under the GRE settings section. Look for active GRE tunnel configurations.Affected if GRE tunnels are configured and active on the device
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Inspect GRE description parameterIn the GRE configuration, examine the 'description' field for any configured tunnels. Check for unusually long text strings that could indicate exploitation or misconfiguration.Affected if The description field contains input exceeding typical length limits or contains unexpected/encoded content
Affected if the router runs firmware version g5.0.1.5-210720-141020 AND has GRE tunnels configured with potentially oversized description parameters
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 dataRestrict access to the CLI management interface to trusted networks only. Contact Siretta for patched firmware. If GRE functionality is not required, disable it until the patch is available.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-40999 — 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-2022-40999 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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