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CVE-2023-40463

21
FAUCET Score

CVE-2023-40463 affects ALEOS 4.16 and earlier, including various Sierra Wireless routers like the ES450, MP70, and RV55. When an authenticated administrator enables debugging mode, the SHA512 hash of the common root password is stored in a root-accessible directory. This vulnerability carries a CVSS score of 7.2 (HIGH), indicating a high severity. An attacker with administrative privileges can gain full control (confidentiality, integrity, and availability) of the device by accessing this hash, with low attack complexity. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Despite this, the vulnerability has garnered some community discussion and media coverage, including an article from BleepingComputer.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.16.0CPE matchmatch criteria
cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:*
>= 4.10, <= 4.16CPE match
cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:*
>= 0, <= 4.9.8CPE match
cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 25th percentile among its peer group of 5,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

source.sierrawireless.com / resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006
Vendor Advisory