Vulnerability Database

310,450

Total vulnerabilities in the database

CVE-2023-6992

Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow. A local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software. Patches: The issue has been patched in commit 8352d10 https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c . The upstream repository is not affected.

  • Published: Jan 4, 2024
  • Updated: Nov 16, 2025
  • CVE: CVE-2023-6992
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 4
  • AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L