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TI-2024-28452 Aliases CVE-2024-42484

ESP-NOW OOB Vulnerability In Group Type Message

Priority LOW 35CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

ESP-NOW Component provides a connectionless Wi-Fi communication protocol. An Out-of-Bound (OOB) vulnerability was discovered in the implementation of the ESP-NOW group type message because there is no check for the addrs_num field of the group type message. This can result in memory corruption related attacks. Normally there are two fields in the group information that need to be checked, i.e., the addrs_num field and the addrs_list fileld. Since we only checked the addrs_list field, an attacker can send a group type message with an invalid addrs_num field, which will cause the message handled by the firmware to be much larger than the current buffer, thus causing a memory corruption issue that goes beyond the payload length.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00439 38th percentileScored 2026-11-07
Fix Fixed esp-now (espressif): 2.5.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
espressifesp-nowbefore 2.5.22.5.2Patch availableCNA
  • esp-now Vendorespressif Affected before 2.5.2 Fixed in 2.5.2 Patch available CNA

CPE names CISA-ADP · 1

CPEVersionsRoleVendor
cpe:2.3:a:espressif:esp-now:*:*:*:*:*:*:*:*——espressif
  • cpe:2.3:a:espressif:esp-now:*:*:*:*:*:*:*:* Versions — — ·espressif

Remediation

  • Fix · CNA esp-now (espressif) Fixed in 2.5.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-42484

References

Other 2

  • TI-2026-31061 arduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCE CVSS 3.1CRITICAL 9.8
  • TI-2024-30765 Multiple Poisoned Pipeline Execution (PPE) vulnerabilities CVSS 3.1CRITICAL 10.0
  • TI-2026-30028 Improper validation of NBNS name_len in arduino-esp32 NetBIOS leads to memory corruption CVSS 3.1HIGH 8.8
  • TI-2025-33484 CSRF Vulnerability in Firmware Update Endpoints Allows Remote Code Execution CVSS 4.0HIGH 8.7
  • TI-2024-22076 Buffer Overflow vulnerability in esp-idf v.5.1 allows a remote attacker to execute… CVSS 3.1MEDIUM 6.5
  • TI-2025-33011 arduino-esp32 vulnerable to CRLF injection in WebServer.cpp CVSS 4.0HIGH 8.9
See all 58 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences