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CVE-2023-51392

29
FAUCET Score

CVE-2023-51392 is a critical vulnerability affecting Ember ZNet versions 7.2.0 through 7.4.0, where the software utilized AES-CCM for cryptography instead of hardware accelerators. This flaw significantly increases the risk of electromagnetic and differential power analysis side-channel attacks. With a CVSS score of 9.8 (CRITICAL), it presents a high impact to confidentiality, integrity, and availability, requiring no user interaction or privileges for exploitation. While there is no evidence of active exploitation, nor publicly available exploit code, the vulnerability has garnered notable community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.2.0, <= 7.2.4CPE matchmatch criteria
cpe:2.3:a:silabs:emberznet:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.2MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.5
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 1st percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

community.silabs.com / 068Vm000001BKm6
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