Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2019-12586

23
FAUCET Score

CVE-2019-12586 describes a denial-of-service vulnerability affecting the EAP peer implementation in Espressif ESP-IDF (versions 2.0.0-4.0.0) and ESP8266_NONOS_SDK (versions 2.2.0-3.1.0). An attacker within radio range can crash affected devices by sending a crafted EAP Success message prematurely. This vulnerability has a CVSS score of 6.5 (Medium), indicating an adjacent network attack vector with low complexity and high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.2CPE matchmatch criteria
cpe:2.3:a:espressif:arduino-esp32:*:*:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:espressif:arduino-esp32:1.0.3:-:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:espressif:arduino-esp32:1.0.3:rc1:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:espressif:arduino-esp32:1.0.3:rc2:*:*:*:*:*:*
>= 2.0.0, <= 4.0.0CPE matchmatch criteria
cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.35%
Probability of exploitation in next 30 days
EPSS Percentile
68.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0135 is in the 93rd percentile among its peer group of 1,802 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

github.com / espressif
Third Party Advisory
github.com / Matheus-Garbelini/esp32_esp8266_attacks
ExploitThird Party Advisory
matheus-garbelini.github.io / home/post/esp32-esp8266-eap-crash
ExploitPatchThird Party Advisory