Skip to content
Fencer Vulns
high 7.5

CVE-2023-40462 json

Improper input leads to DoS

published 2023-12-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-45033

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

The ACEManager component of ALEOS 4.16 and earlier does not

perform input sanitization during authentication, which could

potentially result in a Denial of Service (DoS) condition for

ACEManager without impairing other router functions. ACEManager

recovers from the DoS condition by restarting within ten seconds of

becoming unavailable.

Vendor advisories

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

cisa ICSA-23-341-06 updated cvss 7.5

Sierra Wireless AirLink with ALEOS firmware

  • Sierra Wireless AirLink ALEOS firmware <4.9.9, <4.17.0
    affected: vendor fix, mitigation “Sierra Wireless has released the following software fixes and recommends users update their devices:” 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

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • SierraWireless ALEOS

Classification

Weakness

References

Sources

Fencer Vulns 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.