CVE-2021-28670
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 B8045/B8090 before 103.008.030.32000, C8030/C8035 before 103.001.030.32000, C8045/C8055 before 103.002.030.32000 and C8070 before 103.003.030.32000 allow unauthorized users, by leveraging the Scan To Mailbox feature, to delete arbitrary files from the disk.
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 analysisA detailed technical summary for this CVE is being prepared.
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
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 103.008.030.32000 (B8045/B8090), 103.001.030.32000 (C8030/C8035), 103.002.030.32000 (C8045/C8055), or 103.003.030.32000 (C8070) depending on model
- 1. Download the firmware update from the vendor security bulletin at https://securitydocs.business.xerox.com/wp-content/uploads/2020/12/cert_Security_Mini_Bulletin_XRX20X_for_ALB80xx-C80xxv.pdf
- 2. Identify your specific AltaLink model (B8045, B8055, B8065, B8075, B8090, C8030, C8035, C8045, or C8070)
- 3. Access the printer's embedded web server by navigating to the printer's IP address
- 4. Log in with administrator credentials
- 5. Navigate to the firmware update section (usually under Settings > General Setup > Firmware Update or similar)
- 6. Upload and apply the appropriate firmware version for your model: For B8045/B8090 use 103.008.030.32000 or higher, for C8030/C8035 use 103.001.030.32000 or higher, for C8045/C8055 use 103.002.030.32000 or higher, for C8070 use 103.003.030.32000 or higher
- 7. Wait for the firmware update to complete and the printer to reboot
- 8. Verify the firmware version has been updated correctly in the printer's system information
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-2021-28670 — 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-2021-28670 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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- 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