CVE-2021-28668
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 · uneditedXerox AltaLink B80xx before 103.008.020.23120, C8030/C8035 before 103.001.020.23120, C8045/C8055 before 103.002.020.23120 and C8070 before 103.003.020.23120 has several SQL injection vulnerabilities.
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 analysisUser input is woven into a database query, letting an attacker rewrite the query's logic. From there they can read, alter, or destroy data — frequently the entire database. The reliable fix is parameterised queries (prepared statements), so input is always treated as data and never as SQL.
General guidance for the sql injection class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →
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< 103.008.020.23120< 103.008.020.23120< 103.008.020.23120< 103.008.020.23120< 103.008.020.23120< 103.001.020.23120< 103.001.020.23120< 103.002.020.23120CVSS 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
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 · scoped103.001.020.23120103.002.020.23120103.008.020.23120
Firmware 103.008.020.23120 (B80xx series), 103.001.020.23120 (C8030/C8035), or 103.002.020.23120 (C8045)
- 1. Identify the exact Xerox AltaLink model number (B8045, B8055, B8065, B8075, B8090, C8030, C8035, or C8045) from the device label or web interface
- 2. Navigate to the Xerox support website and locate the firmware download page for that specific model
- 3. Download firmware version 103.008.020.23120 for B80xx series models, 103.001.020.23120 for C8030/C8035, or 103.002.020.23120 for C8045
- 4. Access the device web interface as an administrator
- 5. Navigate to the firmware update or maintenance section
- 6. Upload and apply the downloaded firmware file
- 7. Wait for the device to reboot and verify the new firmware version is installed
- 8. Confirm the SQL injection vulnerability is resolved by reviewing the security patch documentation referenced in XRX20R
Generated from the published advisory — verify against the referenced sources before acting.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-28668 — 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-2021-28668 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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