CVE-2017-18368

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2023-08-07. Federal remediation due 2023-08-28.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

94.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/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

2019-05-02 16:14Z7 YR AGO

Last updated

2025-10-21 23:45Z10 MO AGO

Reserved

2019-05-02

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.1

Document digest

876add853561441de0fe156f5c14f728e288dc73285d18a98e1727f82656823c

• seclists.orghttps://seclists.org/fulldisclosure/2017/Jan/40x_refsource_MISC
• ssd-disclosure.comhttps://ssd-disclosure.com/index.php/archives/2910x_refsource_MISC
• unit42.paloaltonetworks.comhttps://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/x_refsource_MISC
• raw.githubusercontent.comhttps://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txtx_refsource_MISC
• www.zyxel.comhttp://www.zyxel.com/support/announcement_unauthenticated.shtmlx_refsource_MISC
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-18368government-resource