NVD / CVE Program· CNA mitre

CVE-2020-9330: Certain Xerox WorkCentre printers before 073.xxx.000.02300 do not require the user to reenter or validate LDAP bind credentials when changin

Noroxi assessment

Priority: Monitor (action score 35/100)

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: 1% (FIRST EPSS); higher than 64.6% of all records.
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. 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

Certain Xerox WorkCentre printers before 073.xxx.000.02300 do not require the user to reenter or validate LDAP bind credentials when changing the LDAP connector IP address. A malicious actor who gains access to affected devices (e.g., by using default credentials) can change the LDAP connection IP address to a system owned by the actor without knowledge of the LDAP bind credentials. After changing the LDAP connection IP address, subsequent authentication attempts will result in the printer sending plaintext LDAP (Active Directory) credentials to the actor. Although the credentials may belong to a non-privileged user, organizations frequently use privileged service accounts to bind to Active Directory. The attacker gains a foothold on the Active Directory domain at a minimum, and may use the credentials to take over control of the Active Directory domain. This affects 3655*, 3655i*, 58XX*, 58XXi*, 59XX*, 59XXi*, 6655**, 6655i**, 72XX*, 72XXi*, 78XX**, 78XXi**, 7970**, 7970i**, EC7836**, and EC7856** devices.

HighCVSS 8.8 · v3.1—No exploit No fix recorded

Published: Feb 21, 2020
Updated: Jun 16, 2026
EPSS: 1.0% · 64th percentile
CWE: CWE-306

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.0%

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

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Noroxi analysis

What does it mean in your environment?

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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.

Vendor	Product	CPE
xerox	workcentre 3655 firmware	cpe:2.3:o:xerox:workcentre_3655_firmware
xerox	workcentre 3655	cpe:2.3:h:xerox:workcentre_3655
xerox	workcentre 3655i firmware	cpe:2.3:o:xerox:workcentre_3655i_firmware
xerox	workcentre 3655i	cpe:2.3:h:xerox:workcentre_3655i
xerox	workcentre 5845 firmware	cpe:2.3:o:xerox:workcentre_5845_firmware
xerox	workcentre 5845	cpe:2.3:h:xerox:workcentre_5845
xerox	workcentre 5855 firmware	cpe:2.3:o:xerox:workcentre_5855_firmware
xerox	workcentre 5855	cpe:2.3:h:xerox:workcentre_5855
xerox	workcentre 5945 firmware	cpe:2.3:o:xerox:workcentre_5945_firmware
xerox	workcentre 5945	cpe:2.3:h:xerox:workcentre_5945
xerox	workcentre 5955 firmware	cpe:2.3:o:xerox:workcentre_5955_firmware
xerox	workcentre 5955	cpe:2.3:h:xerox:workcentre_5955

and 24 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

xerox workcentre 3655 firmwarebefore 073.060.000.02300
xerox workcentre 3655i firmwarebefore 073.060.000.02300
xerox workcentre 5845 firmwarebefore 073.190.000.02300
xerox workcentre 5855 firmwarebefore 073.190.000.02300
xerox workcentre 5945 firmwarebefore 073.091.000.02300
xerox workcentre 5955 firmwarebefore 073.091.000.02300
xerox workcentre 6655 firmwarebefore 073.110.000.02300
xerox workcentre 6655i firmwarebefore 073.110.000.02300
xerox workcentre 7220 firmwarebefore 073.030.000.02300
xerox workcentre 7225 firmwarebefore 073.030.000.02300
xerox workcentre 7830 firmwarebefore 073.010.000.02300
xerox workcentre 7835 firmwarebefore 073.010.000.02300
xerox workcentre 7845 firmwarebefore 073.010.000.02300
xerox workcentre 7855 firmwarebefore 073.010.000.02300
xerox workcentre 7970 firmwarebefore 073.200.000.02300
xerox workcentre 7970i firmwarebefore 073.200.000.02300
xerox workcentre ec7836 firmwarebefore 073.050.000.02300
xerox workcentre ec7856 firmwarebefore 073.020.000.02300

Same product

xerox: all records

Other highest-scoring records for the same primary product.

CVE-2016-11061Xerox WorkCentre 3655, 3655i, 58XX, 58XXi, 59XX, 59XXi, 6655, 6655i, 72XX, 72XXi, 78XX, 78XXi, 7970, and 7970i devices before 073.xxx.086.15
40Plan
CVE-2020-36201An issue was discovered in certain Xerox WorkCentre products.
30Monitor

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

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-306 · Missing Authentication for Critical Function

CVSS vector

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

nvd-primary

Root cause

A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”

The bug in code

The whole CWE-306 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1// Added for the support team
2app.post("/maintenance/reset", resetDevice);

Fixed

1if (config.maintenanceEnabled) {
2  app.post(
3    "/maintenance/reset",
4    requireSession, requireRole("admin"), resetDevice
5  );
6}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

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

References

securitydocs.business.xerox.com/wp-content/uploads/2020/02/cert_Security_Mini_Bulletin_XRX20D_for_ConnectKey.pdf

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

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