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CVE-2022-41798· NVD / CVE Program· CNA jpcert

Session information easily guessable vulnerability exists in Kyocera Document Solutions MFPs and printers, which may allow a network-adjacen

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.51% (FIRST EPSS).
  • 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.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Session information easily guessable vulnerability exists in Kyocera Document Solutions MFPs and printers, which may allow a network-adjacent attacker to log in to the product by spoofing a user with guessed session information. 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.

MediumCVSS 6.5 · v3.1—No exploit No fix recorded
Published
Dec 5, 2022
Updated
Jun 17, 2026
EPSS
0.5% · 43th percentile

Report tools

JSON

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.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-41798

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
kyocerataskalfa 7550ci firmware
kyocerataskalfa 7550ci
kyocerataskalfa 6550ci firmware
kyocerataskalfa 6550ci
kyocerataskalfa 5550ci firmware
kyocerataskalfa 5550ci
kyocerataskalfa 4550ci firmware
kyocerataskalfa 4550ci
kyocerataskalfa 3550ci firmware
kyocerataskalfa 3550ci
kyocerataskalfa 3050ci firmware
kyocerataskalfa 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 records

Other highest-scoring records for the same primary product.

  • CVE-2022-41807Missing authorization vulnerability exists in Kyocera Document Solutions MFPs and printers, which may allow a network-adjacent attacker to a
    26Monitor
  • CVE-2022-41830Stored cross-site scripting vulnerability in Kyocera Document Solutions MFPs and printers allows a remote authenticated attacker with an adm
    19Monitor

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.

EPSS, last 120 days

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 researchers

Finders, 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
high · data can be read
Integrity
none
Availability
none
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-290 · Authentication Bypass by Spoofing

CVSS vector

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

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records