How many CVEs have a located fix in espressif/esp-idf?

17 published CVEs have a fix traced to functions in espressif/esp-idf, touching 127 functions across 55 files.

Which function in espressif/esp-idf has been patched by the most CVEs?

jpeg_parse_appn_marker in components/esp_driver_jpeg/jpeg_parse_marker.c has been changed by 2 CVE fixes, from 2025 to 2026.

How large is a typical CVE fix in espressif/esp-idf?

The median fix changes 185 lines. 12% of fixes change 20 lines or fewer, and 18% change a single function.

How is a fix located to a function?

The upstream fix commit for each CVE is fetched and its diff is split into hunks. Each hunk is attributed to the function, method or type it changes, using the definition the diff itself names. Backports of the same fix to stable branches are counted once.

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#324 of 500 repositories

espressif/esp-idf

Name: espressif/esp-idf: functions patched by CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

Functions and files changed by CVE fixes in this repository.

Latest located fix October 13, 2026

17

CVE fixes located

Published CVEs

127

Functions patched

Distinct function sites

55

Files patched

Distinct source files

2024–2026

Years covered

By CVE publication date

Overview

17 published CVEs have a fix traced to functions in espressif/esp-idf, the earliest published in 2024. Those fixes changed 127 distinct functions across 55 files, in 1,764 patch hunks.

Among the 500 repositories tracked here, espressif/esp-idf ranks #324 by the number of CVEs with a located fix.

Most patched functions

Functions in espressif/esp-idf changed by the most CVE fixes.

Most patched files

Files in espressif/esp-idf changed by the most CVE fixes.

1components/esp_tee/subproject/main/core/esp_secure_services.c2 CVEs · 22 functions
2components/esp_tee/subproject/main/core/esp_secure_services_iram.c2 CVEs · 12 functions
3components/protocomm/src/transports/protocomm_ble.c2 CVEs · 12 functions
4components/esp_driver_jpeg/jpeg_parse_marker.c2 CVEs · 9 functions
5components/protocomm/src/transports/protocomm_nimble.c2 CVEs · 7 functions
6components/esp_tee/subproject/main/include/esp_tee_memory_utils.h2 CVEs · 2 functions
7components/protocomm/src/simple_ble/simple_ble.c2 CVEs · 2 functions
8components/bt/host/bluedroid/stack/avrc/avrc_pars_tg.c2 CVEs · 1 functions
9components/esp_tee/subproject/components/tee_ota_ops/esp_tee_ota_ops.c2 CVEs · 1 functions
10components/esp_tee/subproject/main/common/multi_heap.c2 CVEs · 1 functions

Fix size

How much code a CVE fix in espressif/esp-idf changes, with backports counted once.

185

Median lines changed

Added plus removed, per CVE

12%

Fixes of 20 lines or fewer

Share of CVE fixes

18%

Fixes in a single function

Share of CVE fixes

Latest CVEs

The most recently published CVEs with a fix located in espressif/esp-idf, and the functions each fix changed.

ESF-IDF: Bluetooth Classic L2CAP Heap Memory Disclosure Allowing Unauthorized Access to Sensitive Data
CVE-2026-81507process_l2cap_cmd l2cu_send_peer_config_rej
Medium · CVSS 6.5
EPSS 0.3%2026-10-13
ESF-IDF: Heap Out-of-Bounds Read in Bluedroid A2DP Sink Media Packet Processing
CVE-2026-81508btc_a2dp_sink_handle_inc_media
Medium · CVSS 4.3
EPSS 0.2%2026-09-24
ESF-IDF: Stack-Based Out-of-Bounds Write in JPEG Decoder DQT Marker Parsing
CVE-2026-55687jpeg_decoder_get_info jpeg_parse_dqt_marker jpeg_parse_dht_marker
High · CVSS 7.5
EPSS 0.7%2026-07-10
ESF-IDF: Heap Out-of-Bounds Read in Bluedroid AVRCP Target Parser
CVE-2026-46532avrc_pars_vendor_cmd
Medium · CVSS 4.6
EPSS 0.4%2026-06-10
ESF-IDF: Heap buffer overflow in protocomm Security2 over Bluetooth
CVE-2026-45542handle_session_command0 handle_session_command1 sec1_req_handler
High · CVSS 7.1
EPSS 0.5%2026-06-10
ESF-IDF: Out-of-Bounds Read in ESP-TEE Secure Service Wrappers
CVE-2026-45329is_spi_host_in_ree get_sha_digest_size _ss_esp_sha_read_digest_state
High · CVSS 7.1
EPSS 0.2%2026-06-10
ESF-IDF: Out-of-Bounds Write in ESP-TEE Secure Service Wrappers
CVE-2026-45328is_spi_host_in_ree get_sha_digest_size _ss_esp_sha_read_digest_state
Critical · CVSS 9.3
EPSS 0.2%2026-06-10
ESF-IDF: Out-of-bounds Read in lwIP DHCP Server Option Parser
CVE-2026-45160parse_options
Medium · CVSS 6.5
EPSS 0.4%2026-06-10
ESF-IDF: Remote Null Pointer Dereference in WebSocket Server
CVE-2026-45541httpd_ws_get_response_subprotocol
High · CVSS 7.5
EPSS 0.8%2026-06-10
ESF-IDF Has Memory Safety Vulnerabilities in BLE Provisioning
CVE-2026-25508protocomm_ble_stop protocomm_ble_transport_active transport_simple_ble_connect
Medium · CVSS 6.3
EPSS 0.4%2026-02-04
ESF-IDF Has Use-after-free Vulnerability in BLE Provisioning
CVE-2026-25507protocomm_ble_stop protocomm_ble_transport_active transport_simple_ble_connect
Medium · CVSS 6.3
EPSS 0.4%2026-02-04
ESF-IDF is Vulnerable to WPS Enrollee Fragment Integer Underflow
CVE-2026-25532crypto_bignum_to_string dpp_authentication esp_dpp_parse_chan_list
High · CVSS 8.0
EPSS 0.4%2026-02-04

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Other repositories

Repositories with a similar number of located CVE fixes.

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Frequently asked questions

Common questions about CVE fixes in espressif/esp-idf.

How many CVEs have a located fix in espressif/esp-idf?: 17 published CVEs have a fix traced to functions in espressif/esp-idf, touching 127 functions across 55 files.
Which function in espressif/esp-idf has been patched by the most CVEs?: jpeg_parse_appn_marker in components/esp_driver_jpeg/jpeg_parse_marker.c has been changed by 2 CVE fixes, from 2025 to 2026.
How large is a typical CVE fix in espressif/esp-idf?: The median fix changes 185 lines. 12% of fixes change 20 lines or fewer, and 18% change a single function.
How is a fix located to a function?: The upstream fix commit for each CVE is fetched and its diff is split into hunks. Each hunk is attributed to the function, method or type it changes, using the definition the diff itself names. Backports of the same fix to stable branches are counted once.

References

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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