Security readout for executives and security teams
Plain-English summary
Certain Xerox WorkCentre multifunction printers can allow unauthenticated remote command execution when running firmware before R18-05 073.xxx.0487.15000. That means an attacker with network reach to an affected device may be able to run commands without logging in. Treat this as urgent for any still-deployed legacy Xerox fleet.
Executive priority
Prioritize remediation where affected Xerox devices are still in production. Even without confirmed active exploitation, unauthenticated RCE on networked office infrastructure can create a serious entry point into internal environments and sensitive document workflows.
Technical view
CVE-2018-20771 affects listed Xerox WorkCentre 3655/3655i, 58XX/58XXi, 59XX/59XXi, 6655/6655i, 72XX/72XXi, 78XX/78XXi, 7970/7970i, EC7836, and EC7856 devices before R18-05 073.xxx.0487.15000. The published description identifies unauthenticated remote command execution. No CVSS, CWE, or detailed exploit conditions are provided in the bundle.
Likely exposure
Exposure is likely limited to organizations that still operate the named Xerox WorkCentre or ConnectKey devices on firmware older than R18-05 073.xxx.0487.15000. Risk is highest where printer interfaces are reachable from user networks, guest networks, VPN users, or the internet.
Exploitation context
The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. However, unauthenticated remote command execution is a severe vulnerability class, especially on multifunction printers that often bridge document workflows, authentication, address books, and internal networks.
Researcher notes
The public bundle is sparse: it names affected models, a fixed firmware threshold, and unauthenticated RCE, but omits CVSS, CWE, root cause, protocol, and exploit preconditions. Validation should focus on model and firmware evidence, not assumptions about undocumented attack paths.
Mitigation direction
- Inventory Xerox devices and map exact model names against the affected list.
- Check firmware versions for R18-05 073.xxx.0487.15000 or later.
- Update affected devices according to Xerox security bulletin guidance.
- Restrict device access to trusted administration and print networks only.
- Review vendor guidance for any model-specific upgrade or workaround details.
Validation and detection
- Confirm each listed model is or is not present in the fleet.
- Record current firmware for every matching Xerox WorkCentre device.
- Verify updated devices report R18-05 073.xxx.0487.15000 or later.
- Check network paths to ensure untrusted users cannot reach device services.
- Document exceptions where legacy devices cannot be upgraded immediately.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-20771 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://securitydocs.business.xerox.com/wp-content/uploads/2018/07/cert_Security_Mini_Bulletin_XRX18Y_for_ConnectKey_EC78xx_v1.0.pdfCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.