Missing authorization vulnerability exists in Kyocera Document Solutions MFPs and printers, which may allow a network-adjacent attacker to a
Missing authorization vulnerability exists in Kyocera Document Solutions MFPs and printers, which may allow a network-adjacent attacker to alter the product settings without authentication by sending a specially crafted request. Affected products/versions are as follows: TASKalfa 7550ci/6550ci, TASKalfa 5550ci/4550ci/3550ci/3050ci, TASKalfa 255c/205c, TASKalfa 256ci/206ci, ECOSYS M6526cdn/M6526cidn, FS-C2126MFP/C2126MFP+/C2026MFP/C2026MFP+, TASKalfa 8000i/6500i, TASKalfa 5500i/4500i/3500i, TASKalfa 305/255, TASKalfa 306i/256i, LS-3140MFP/3140MFP+/3640MFP, ECOSYS M2535dn, LS-1135MFP/1035MFP, LS-C8650DN/C8600DN, ECOSYS P6026cdn, FS-C5250DN, LS-4300DN/4200DN/2100DN, ECOSYS P4040dn, ECOSYS P2135dn, and FS-1370DN.
- Published
- Dec 5, 2022
- Updated
- Jun 17, 2026
- EPSS
- 0.5% · 41th percentile
- CWE
- CWE-862
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Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| kyocera | taskalfa 7550ci firmware | cpe:2.3:o:kyocera:taskalfa_7550ci_firmware |
| kyocera | taskalfa 7550ci | cpe:2.3:h:kyocera:taskalfa_7550ci |
| kyocera | taskalfa 6550ci firmware | cpe:2.3:o:kyocera:taskalfa_6550ci_firmware |
| kyocera | taskalfa 6550ci | cpe:2.3:h:kyocera:taskalfa_6550ci |
| kyocera | taskalfa 5550ci firmware | cpe:2.3:o:kyocera:taskalfa_5550ci_firmware |
| kyocera | taskalfa 5550ci | cpe:2.3:h:kyocera:taskalfa_5550ci |
| kyocera | taskalfa 4550ci firmware | cpe:2.3:o:kyocera:taskalfa_4550ci_firmware |
| kyocera | taskalfa 4550ci | cpe:2.3:h:kyocera:taskalfa_4550ci |
| kyocera | taskalfa 3550ci firmware | cpe:2.3:o:kyocera:taskalfa_3550ci_firmware |
| kyocera | taskalfa 3550ci | cpe:2.3:h:kyocera:taskalfa_3550ci |
| kyocera | taskalfa 3050ci firmware | cpe:2.3:o:kyocera:taskalfa_3050ci_firmware |
| kyocera | taskalfa 3050ci | cpe:2.3:h:kyocera:taskalfa_3050ci |
and 68 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- kyocera ecosys m2535dn firmwareall versions
- kyocera ecosys m6526cdn firmwareall versions
- kyocera ecosys m6526cidn firmwareall versions
- kyocera ecosys p2135dn firmwareall versions
- kyocera ecosys p4040dn firmwareall versions
- kyocera ecosys p6026cdn firmwareall versions
- kyocera fs-1370dn firmwareall versions
- kyocera fs-c2026mfp firmwareall versions
- kyocera fs-c2126mfp firmwareall versions
- kyocera fs-c2126mfp+ firmwareall versions
- kyocera fs-c5250dn firmwareall versions
- kyocera ls-1035mfp firmwareall versions
- kyocera ls-1135mfp firmwareall versions
- kyocera ls-2100dn firmwareall versions
- kyocera ls-3140mfp firmwareall versions
- kyocera ls-3140mfp+ firmwareall versions
- kyocera ls-3640mfp firmwareall versions
- kyocera ls-4200dn firmwareall versions
- kyocera ls-4300dn firmwareall versions
- kyocera ls-c8600dn firmwareall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (jpcert). Independent of NVD's CPE analysis and usually ahead of it.
KYOCERA Document Solutions Inc. Kyocera Document Solutions MFPs and printers
- A wide range of products is affected. For the specific products/versions information, see the URL provided by the vendor which is listed in [Reference] section.affected
Same product
kyocera: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-41798Session information easily guessable vulnerability exists in Kyocera Document Solutions MFPs and printers, which may allow a network-adjacen26Monitor
- CVE-2022-41830Stored cross-site scripting vulnerability in Kyocera Document Solutions MFPs and printers allows a remote authenticated attacker with an adm19Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-862 · Missing AuthorizationCVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- jvn.jp/en/jp/JVN46345126/index.html
- www.kyoceradocumentsolutions.co.jp/support/information/info_20221101.html
- www.kyoceradocumentsolutions.com/en/our-business/security/information/2022-11-01.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.