CVE-2021-28673

What it is

Xerox Phaser 6510 before 64.61.23 and 64.59.11 (Bridge), WorkCentre 6515 before 65.61.23 and 65.59.11 (Bridge), VersaLink B400 before 37.61.23 and 37.59.01 (Bridge), B405 before 38.61.23 and 38.59.01 (Bridge), B600/B610 before 32.61.23 and 32.59.01 (Bridge), B605/B615 before 33.61.23 and 33.59.01 (Bridge), B7025/30/35 before 58.61.23 and 58.59.11 (Bridge), C400 before 67.61.23 and 67.59.01 (Bridge), C405 before 68.61.23 and 68.59.01 (Bridge), C500/C600 before 61.61.23 and 61.59.01 (Bridge), C505/C605 before 62.61.23 and 62.59.11 (Bridge), C7000 before 56.61.23 and 56.59.01 (Bridge), C7020/25/30 before 57.61.23 and 57.59.01 (Bridge), C8000/C9000 before 70.61.23 and 70.59.01 (Bridge), allows remote attackers with "a weaponized clone file" to execute arbitrary commands in the Web User Interface.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

1.9% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2021-03-29 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 03:46 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.9% in the next 30 days (EPSS).
• Severity: 9.8 CRITICAL (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2021-03-29 20:15 UTC

Last modified

2026-06-17 03:46 UTC

Exploit probability

1.9% · EPSS, next 30 days

Record status

Modified

Affected

• Xerox Phaser 6510 Firmware < 64.59.11
• Xerox Workcentre 6515 Firmware < 65.59.11
• Xerox Versalink b400 Firmware < 37.59.01
• Xerox Versalink b405 Firmware < 38.59.01
• Xerox Versalink b600 Firmware < 32.59.01
• Xerox Versalink b610 Firmware < 32.59.01
• Xerox Versalink b605 Firmware < 33.59.01
• Xerox Versalink b615 Firmware < 33.59.01

Attack profile CVSS 3.1 · 9.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-28673.md and follow it. Check whether this project is affected by CVE-2021-28673. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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