What’s Vulnerable › Vulnerabilities

CVE-2021-28670

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-29 · updated 2026-06-17

Description

Xerox 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.

Affected products

• Xerox Altalink B8045 Firmware: before 103.008.020.23120 — fixed in 103.008.020.23120
• Xerox Altalink B8055 Firmware: before 103.008.020.23120 — fixed in 103.008.020.23120
• Xerox Altalink B8065 Firmware: before 103.008.020.23120 — fixed in 103.008.020.23120
• Xerox Altalink B8075 Firmware: before 103.008.020.23120 — fixed in 103.008.020.23120
• Xerox Altalink B8090 Firmware: before 103.008.020.23120 — fixed in 103.008.020.23120
• Xerox Altalink C8030 Firmware: before 103.001.020.23120 — fixed in 103.001.020.23120
• Xerox Altalink C8035 Firmware: before 103.001.020.23120 — fixed in 103.001.020.23120
• Xerox Altalink C8045 Firmware: before 103.002.020.23120 — fixed in 103.002.020.23120
• Xerox Altalink C8055 Firmware: before 103.002.020.23120 — fixed in 103.002.020.23120
• Xerox Altalink C8070 Firmware: before 103.003.020.23120 — fixed in 103.003.020.23120

How to fix

Upgrade to a fixed version: Xerox Altalink B8045 Firmware 103.008.020.23120; Xerox Altalink B8055 Firmware 103.008.020.23120; Xerox Altalink B8065 Firmware 103.008.020.23120; Xerox Altalink B8075 Firmware 103.008.020.23120; Xerox Altalink B8090 Firmware 103.008.020.23120; Xerox Altalink C8030 Firmware 103.001.020.23120; Xerox Altalink C8035 Firmware 103.001.020.23120; Xerox Altalink C8045 Firmware 103.002.020.23120; Xerox Altalink C8055 Firmware 103.002.020.23120; Xerox Altalink C8070 Firmware 103.003.020.23120. Check the vendor advisory for mitigations.

References

• https://securitydocs.business.xerox.com/wp-content/uploads/2020/12/cert_Security_Mini_Bulletin_XRX20X_for_ALB80xx-C80xxv.pdf
• https://securitydocs.business.xerox.com/wp-content/uploads/2020/12/cert_Security_Mini_Bulletin_XRX20X_for_ALB80xx-C80xxv.pdf

Get alerted when CVE-2021-28670 or the next vulnerability affects your stack