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Fencer Intel
high 8.8

CVE-2018-4066 json

An exploitable cross-site request forgery vulnerability exists in the ACEManager functionality of Sierra Wireless AirLink ES450 FW 4.9.3.

published 2019-05-06 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-15852

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

An exploitable cross-site request forgery vulnerability exists in the ACEManager functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can cause an authenticated user to perform privileged requests unknowingly, resulting in unauthenticated requests being requested through an authenticated user. An attacker can get an authenticated user to request authenticated pages on the attacker's behalf to trigger this vulnerability.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-19-122-03 updated cvss 6.8

Sierra Wireless AirLink ALEOS (Update B)

  • Sierra Wireless GX450 and ES450 < 4.9.4 Sierra Wireless LS300 GX400 GX440 and ES440 < 4.4.9 Sierra Wireless MP70 MP70E RV50 RV50X LX40 and LX60 < 4.12
    affected: mitigation “LS300, GX400, GX440, ES440: ALEOS 4.4.9 The ALEOS 4.4.9 Release Note is available (login required)” source.sierrawireless.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.91% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2018-0751 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • n/a Sierra Wireless

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.