CVE-2018-8862

In ATI Systems Emergency Mass Notification Systems (HPSS16, HPSS32, MHPSS, and ALERT4000) devices, an improper authentication vulnerability caused by specially crafted malicious radio transmissions may allow an attacker to remotely trigger false alarms.

Published: 2018-05-25 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-8862 is rated Low Risk (27.8/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.58%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-8862

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.14% 0.58% +0.43%
2 2026-03-23 0.16% 0.14% -0.02%
3 2025-03-17 — 0.16% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-8862

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.1 3.0 LOW
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.6 1.4 [email protected]
2.9 2.0 LOW
AV:A/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 5.5 2.9 [email protected]

Weakness enumeration for CVE-2018-8862

Affected software / configurations for CVE-2018-8862

Vendor Product Version Raw CPE
atisystem hpss16_firmware — cpe:2.3:o:atisystem:hpss16_firmware:-:*:*:*:*:*:*:*
atisystem hpss32_firmware — cpe:2.3:o:atisystem:hpss32_firmware:-:*:*:*:*:*:*:*
atisystem mhpss_firmware — cpe:2.3:o:atisystem:mhpss_firmware:-:*:*:*:*:*:*:*
atisystem alert4000_firmware — cpe:2.3:o:atisystem:alert4000_firmware:-:*:*:*:*:*:*:*

References for CVE-2018-8862

URL Tags
http://www.securityfocus.com/bid/103721 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-100-01 Mitigation Third Party Advisory US Government Resource
cvelogic Threat Intelligence