CVE-2018-4063

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2025-12-12. Federal remediation due 2026-01-02.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

27.06% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 97.9% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-05-06 18:43Z7 YR AGO

Last updated

2026-05-22 13:18Z3 MO AGO

Reserved

2018-01-02

Assigning CNA

talos

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-434Unrestricted Upload of File with Dangerous TypeBase

Data version

5.2

Document digest

e151fdb33c68dba889d36b12e3a05c68d94b27b557346c42d1865bc1ea680e6f

• packetstormsecurity.comhttp://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.htmlx_refsource_MISC
• ics-cert.us-cert.govhttps://ics-cert.us-cert.gov/advisories/ICSA-19-122-03x_refsource_MISC
• www.securityfocus.com108147http://www.securityfocus.com/bid/108147vdb-entryx_refsource_BID
• talosintelligence.comhttps://talosintelligence.com/vulnerability_reports/TALOS-2018-0748x_refsource_MISC
• www.forescout.comhttps://www.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack/third-party-advisory
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4063government-resource