CVE-2023-46894

19
FAUCET Score

CVE-2023-46894 is a high-severity vulnerability (CVSS 7.5) affecting espressif esptool version 4.6.2, stemming from the use of a weak cryptographic algorithm (CWE-326). This flaw allows unauthenticated remote attackers to view sensitive information due to the cryptographic weakness. While no active exploitation, public exploit code, or significant community discussion has been observed, the potential for high confidentiality impact remains.

Impacted Technologies

VendorProductVersion(s)CPE
4.6.2CPE matchmatch criteria
cpe:2.3:a:espressif:esptool:4.6.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 17th percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Advisories (2)

pipGHSA-3f38-96qm-r3fwhigh

esptool allows attackers to view sensitive information via weak cryptographic algorithm

Nov 9, 2023
redhatCVE-2023-46894Low

esptool: inadequate encryption strength

Nov 9, 2023

References

github.com / espressif/esptool/issues/926
Exploit