CVE-2021-20871

MEDIUM
6.5
CVSS Score
Published: January 4, 2022 at 03:05 AM UTC
Updated: June 17, 2026 at 03:34 AM UTC
161 products affected across 1 vendorBizhub C659 FirmwareBizhub C558 FirmwareBizhub C458 Firmware

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%

Description

Exposure of sensitive information to an unauthorized actor vulnerability in KONICA MINOLTA bizhub series (bizhub C750i G00-35 and earlier, bizhub C650i/C550i/C450i G00-B6 and earlier, bizhub C360i/C300i/C250i G00-B6 and earlier, bizhub 750i/650i/550i/450i G00-37 and earlier, bizhub 360i/300i G00-33 and earlier, bizhub C287i/C257i/C227i G00-19 and earlier, bizhub 306i/266i/246i/226i G00-B6 and earlier, bizhub C759/C659 GC7-X8 and earlier, bizhub C658/C558/C458 GC7-X8 and earlier, bizhub 958/808/758 GC7-X8 and earlier, bizhub 658e/558e/458e GC7-X8 and earlier, bizhub C287/C227 GC7-X8 and earlier, bizhub 287/227 GC7-X8 and earlier, bizhub 368e/308e GC7-X8 and earlier, bizhub C368/C308/C258 GC9-X4 and earlier, bizhub 558/458/368/308 GC9-X4 and earlier, bizhub C754e/C654e GDQ-M0 and earlier, bizhub 754e/654e GDQ-M0 and earlier, bizhub C554e/C454e GDQ-M1 and earlier, bizhub C364e/C284e/C224e GDQ-M1 and earlier, bizhub 554e/454e/364e/284e/224e GDQ-M1 and earlier, bizhub C754/C654 C554/C454 GR1-M0 and earlier, bizhub C364/C284/C224 GR1-M0 and earlier, bizhub 754/654 GR1-M0 and earlier, bizhub C4050i/C3350i/C4000i/C3300i G00-B6 and earlier, bizhub C3320i G00-B6 and earlier, bizhub 4750i/4050i G00-22 and earlier, bizhub 4700i G00-22 and earlier, bizhub C3851FS/C3851/C3351 GC9-X4 and earlier, and bizhub 4752/4052 GC9-X4 and earlier) allows an attacker on the adjacent network to obtain the credentials if the destination information including credentials are registered in the address book via a specific SOAP message.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < gdr-m1
Affected range stops below gdr-m1, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-224e (same device)
v < g00-e9
Affected range stops below g00-e9, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-226i (same device)
v < gca-y0
Affected range stops below gca-y0, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-227 (same device)
v < g00-e9
Affected range stops below g00-e9, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-246i (same device)
v < g00-e9
Affected range stops below g00-e9, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-266i (same device)
v < gdr-m1
Affected range stops below gdr-m1, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-284e (same device)
v < gca-y0
Affected range stops below gca-y0, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-287 (same device)
v < g00-e9
Affected range stops below g00-e9, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-300i (same device)
v < g00-e9
Affected range stops below g00-e9, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-306i (same device)
v < gca-x4
Affected range stops below gca-x4, so it looks safe — our inference, not a vendor statement
konicaminolta-bizhub-308 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

x_refsource_MISCThird Party AdvisoryVDB Entry
https://jvn.jp/en/vu/JVNVU95192472/index.html
x_refsource_MISCThird Party AdvisoryVDB Entry
https://jvn.jp/vu/JVNVU95192472/index.html

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200

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