Risk Letters

Exploited vulnerability

CVE-2023-4863

TLP:CLEAR

Google Chromium WebP Heap-Based Buffer Overflow Vulnerability

Google Chromium WebP contains a heap-based buffer overflow vulnerability that allows a remote attacker to perform an out-of-bounds memory write via a crafted HTML page. This vulnerability can affect applications that use the WebP Codec.

Facts

  • Vendor: Google
  • Product: Chromium WebP
  • CVSS: 8.8
  • EPSS (probability of exploitation within 30 days): 100 %
  • On CISA's Known Exploited Vulnerabilities list since: 13 September 2023
  • First known exploitation: 13 September 2023
  • CISA's deadline for US federal agencies: 4 October 2023
  • Weakness: CWE-787
  • First seen by Risk Letters: 13 September 2023

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD