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CVE-2020-13595

17
FAUCET Score

CVE-2020-13595 is a medium-severity vulnerability affecting Espressif ESP-IDF versions 4.0 through 4.2 on ESP32 devices. An attacker within radio range can send specially crafted Bluetooth Low Energy (BLE) packets, causing the BLE controller to return an incorrect number of completed packets and trigger an assertion failure on the host stack. This results in a denial of service, disabling the target device's BLE stack. There is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, <= 4.2CPE matchmatch criteria
cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 85th percentile among its peer group of 1,802 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, 0.0 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

asset-group.github.io / cves.html
Third Party Advisory
asset-group.github.io / disclosures/sweyntooth
Third Party Advisory
github.com / espressif/esp32-bt-lib
Third Party Advisory