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Fencer Vulns
medium 4.3

CVE-2024-50594 json

An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0.

published 2025-04-02 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-54351

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted series of network requests can lead to denial of service. An attacker can send a sequence of malicious packets to trigger this vulnerability.This vulnerability affects the NetX Duo Web Component HTTP Server implementation which can be found in x-cube-azrtos-f7\Middlewares\ST\netxduo\addons\web\nx_web_http_server.c

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2024-2102 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • STMicroelectronics X-CUBE-AZRT-H7RS
  • STMicroelectronics X-CUBE-AZRTOS-F4
  • STMicroelectronics X-CUBE-AZRTOS-F7
  • STMicroelectronics X-CUBE-AZRTOS-G0
  • STMicroelectronics X-CUBE-AZRTOS-G4
  • STMicroelectronics X-CUBE-AZRTOS-H7
  • STMicroelectronics X-CUBE-AZRTOS-L4
  • STMicroelectronics X-CUBE-AZRTOS-L5
  • STMicroelectronics X-CUBE-AZRTOS-WB
  • STMicroelectronics X-CUBE-AZRTOS-WL

Classification

Weakness
  • CWE-191 Integer Underflow (Wrap or Wraparound)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.