No exploitation reported

CVE-2021-20679

No exploitation reported by the sources we read.

Published2021-03-25

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

Fuji Xerox multifunction devices and printers (DocuCentre-VII C7773/C6673/C5573/C4473/C3373/C3372/C2273, DocuCentre-VII C7788/C6688/C5588, ApeosPort-VII C7773/C6673/C5573/C4473/C3373/C3372 C2273, ApeosPort-VII C7788/C6688/C5588, ApeosPort C7070/C6570/C5570/C4570/C3570/C3070/C7070G/C6570G/C5570G/C4570G/C3570G/C3070G, ApeosPort-VII C4421/C3321, ApeosPort C3060/C2560/C2060/C3060G/C2560G/C2060G, ApeosPort-VII CP4421, ApeosPort Print C5570, ApeosPort 5570/4570/5570G/4570G, ApeosPort 3560/3060/2560/3560G/3060G/2560G, ApeosPort-VII 5021/ 4021, ApeosPort-VII P5021, DocuPrint CP 555 d/505 d, DocuPrint P505 d, PrimeLink C9065/C9070, DocuPrint CP475AP, and DocuPrint P475AP) allow an attacker to cause a denial of service (DoS) condition and abnormal end (ABEND) of the affected products via sending a specially crafted command.

Timeline

dates in UTC

2021-03-2506:15CVE 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-2021-20679?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-20679?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Fujixerox apeosport 1860 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Fujixerox apeosport 2560 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Fujixerox apeosport 2560g firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

72 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

Advisories and patches

www.fujixerox.co.jpVendor Advisory
www.fujixerox.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.07.8read 2026-10-23
FIRST EPSSEPSS score1.6 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2021-03-25
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2021-20679?

Is CVE-2021-20679 actively exploited?

Active exploitation of CVE-2021-20679 has not been confirmed. Its EPSS score was 1.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-20679?

CVE-2021-20679 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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