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No exploitation reportedFix available

CVE-2021-28672

No exploitation reported by the sources we read.

  • Published2021-03-29
  • Fixed in64.65.51 · 64.59.11
  • WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Xerox Phaser 6510 before 64.65.51 and 64.59.11 (Bridge), WorkCentre 6515 before 65.65.51 and 65.59.11 (Bridge), VersaLink B400 before 37.65.51 and 37.59.01 (Bridge), B405 before 38.65.51 and 38.59.01 (Bridge), B600/B610 before 32.65.51 and 32.59.01 (Bridge), B605/B615 before 33.65.51 and 33.59.01 (Bridge), B7025/30/35 before 58.65.51 and 58.59.11 (Bridge), C400 before 67.65.51 and 67.59.01 (Bridge), C405 before 68.65.51 and 68.59.01 (Bridge), C500/C600 before 61.65.51 and 61.59.01 (Bridge), C505/C605 before 62.65.51 and 62.59.01 (Bridge), C7000 before 56.65.51 and 56.59.01 (Bridge), C7020/25/30 before 57.65.51 and 57.59.01 (Bridge), C8000/C9000 before 70.65.51 and 70.59.01 (Bridge), C8000W before 72.65.51 allows remote attackers to execute arbitrary code through a buffer overflow in Web page parameter handling.

Timeline

dates in UTC
  1. 2021-03-2921:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-28672?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-28672?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Xerox phaser 6510 firmwareversion to verify
BranchAffectedFixed in
64.65< 64.65.5164.65.51
64.59< 64.59.1164.59.11
Xerox versalink b400 firmwareversion to verify
BranchAffectedFixed in
37.65< 37.65.5137.65.51
37.59< 37.59.0137.59.01
Xerox versalink b405 firmwareversion to verify
BranchAffectedFixed in
38.65< 38.65.5138.65.51
38.59< 38.59.0138.59.01

21 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Xerox phaser 6510 firmware to 64.65.51 · 64.59.11

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-120read 2026-10-23
  • FIRST EPSSEPSS score2.2 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-03-29
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2021-28672?

Xerox Phaser 6510 before 64.65.51 and 64.59.11 (Bridge), WorkCentre 6515 before 65.65.51 and 65.59.11 (Bridge), VersaLink B400 before 37.65.51 and 37.59.01 (Bridge), B405 before 38.65.51 and 38.59.01 (Bridge), B600/B610 before 32.65.51 and 32.59.01 (Bridge), B605/B615 before 33.65.51 and 33.59.01 (Bridge), B7025/30/35 before 58.65.51 and 58.59.11 (Bridge), C400 before 67.65.51 and 67.59.01 (Bridge), C405 before 68.65.51 and 68.59.01 (Bridge), C500/C600 before 61.65.51 and 61.59.01 (Bridge), C505/C605 before 62.65.51 and 62.59.01 (Bridge), C7000 before 56.65.51 and 56.59.01 (Bridge), C7020/25/30 before 57.65.51 and 57.59.01 (Bridge), C8000/C9000 before 70.65.51 and 70.59.01 (Bridge), C8000W before 72.65.51 allows remote attackers to execute arbitrary code through a buffer overflow in Web page parameter handling.

Is CVE-2021-28672 actively exploited?

Active exploitation of CVE-2021-28672 has not been confirmed. Its EPSS score was 2.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-28672?

CVE-2021-28672 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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