Kaspersky ID:
KLA90953
Detect Date:
03/27/2026
Updated:
03/30/2026

Description

Multiple vulnerabilities were found in Microsoft Browser. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary code, bypass security restrictions.

Below is a complete list of vulnerabilities:

  1. Out of bounds read vulnerability in WebAudio can be exploited to cause denial of service.
  2. Heap buffer overflow vulnerability in WebAudio can be exploited to cause denial of service.
  3. Out of bounds read vulnerability in CSS can be exploited to cause denial of service.
  4. Heap buffer overflow vulnerability in CSS can be exploited to cause denial of service.
  5. Use after free vulnerability in FedCM can be exploited to cause denial of service or execute arbitrary code.
  6. Security vulnerability can be exploited to bypass security restrictions.
  7. Heap buffer overflow vulnerability in WebGL can be exploited to cause denial of service.
  8. Integer overflow vulnerability in Fonts can be exploited to cause execute arbitrary code and denial of service.

Original advisories

Exploitation

Related products

CVE list

  • CVE-2026-4442
    critical
  • CVE-2026-4673
    critical
  • CVE-2026-4674
    critical
  • CVE-2026-4675
    critical
  • CVE-2026-4677
    critical
  • CVE-2026-4679
    critical
  • CVE-2026-4680
    critical
  • CVE-2026-32187
    warning

Read more

Find out the statistics of the vulnerabilities spreading in your region on statistics.securelist.com

Found an inaccuracy in the description of this vulnerability? Let us know!
Kaspersky Next
Let’s go Next: redefine your business’s cybersecurity
Learn more
New Kaspersky!
Your digital life deserves complete protection!
Learn more
Do you want to save your changes?
Your message has been sent successfully.