Vulnerability in Espressif Esp-Now
CVE-2024-42483
ESP-NOW Component provides a connectionless Wi-Fi communication protocol. An replay attacks vulnerability was discovered in the implementation of the ESP-NOW because the caches is not differentiated by message types, it is a single, shared resource for all kinds of messages, whether they are broadcast or unicast, and regardless of whether they are ciphertext or plaintext. This can result an attacker to clear the cache of its legitimate entries, there by creating an opportunity to re-inject previously captured packets. This vulnerability is fixed in 2.5.2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Espressif Esp-Now — versions < 2.5.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/espressif/esp-now/security/advisories/GHSA-wf6q-c2xr-77xj (Exploit, Third Party Advisory)
- github.com/espressif/esp-now/commit/4e30db50d541b2909d278ef0db05de1a3d7190ef (Patch)
Frequently asked questions
- What is CVE-2024-42483?
- CVE-2024-42483 is a medium-severity vulnerability in Espressif Esp-Now, classified under CWE-349. CVSS score: 6.5/10. Published 2024-09-12.
- How severe is CVE-2024-42483?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2024-42483 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.