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CVE-2021-20871

22
FAUCET Score

CVE-2021-20871 is a sensitive information exposure vulnerability affecting numerous KONICA MINOLTA bizhub series printers. An attacker on an adjacent network can exploit this flaw by sending a specific SOAP message to obtain credentials stored in the device's address book. With a CVSS score of 6.5 (Medium), this vulnerability requires adjacent network access and has low attack complexity, leading to high confidentiality impact without affecting integrity or availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< g00-e9CPE matchmatch criteria
cpe:2.3:o:konicaminolta:bizhub_c750i_firmware:*:*:*:*:*:*:*:*
< g00-e9CPE matchmatch criteria
cpe:2.3:o:konicaminolta:bizhub_c650i_firmware:*:*:*:*:*:*:*:*
< g00-e9CPE matchmatch criteria
cpe:2.3:o:konicaminolta:bizhub_c550i_firmware:*:*:*:*:*:*:*:*
< g00-e9CPE matchmatch criteria
cpe:2.3:o:konicaminolta:bizhub_c450i_firmware:*:*:*:*:*:*:*:*
< g00-e9CPE matchmatch criteria
cpe:2.3:o:konicaminolta:bizhub_c360i_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
41.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 63rd percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/vu/JVNVU95192472/index.html
Third Party AdvisoryVDB Entry
jvn.jp / vu/JVNVU95192472/index.html
Third Party AdvisoryVDB Entry
konicaminolta.com / global/newsroom/topics/2021/1224-01-01.html
MitigationVendor Advisory
konicaminolta.jp / business/support/important/211224_01_01.html
MitigationVendor Advisory