VDB

CVE-2025-47712

CVE-2025-47712 PUBLISHED CVSS 6.5 MEDIUM

A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leading to a denial of service.

EPSS 0.39% · 31.7th percentile

Risk Scores

CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.39%
31.7th percentile

Affected Products

VendorProductVersions
Red HatRed Hat Enterprise Linux 8 Advanced Virtualization
Red HatRed Hat Enterprise Linux 7
nbdkit_projectnbdkit
Red HatRed Hat Enterprise Linux 10
Red HatRed Hat Enterprise Linux 8 Advanced Virtualization
Red HatRed Hat Enterprise Linux 8
1.21.16, 1.40.0, 1.42.0
Red HatRed Hat Enterprise Linux 9

Timeline

  • May 14, 2025 CVE Published
  • Jun 9, 2025 EPSS Score
  • Jun 9, 2025 PoC Published
  • Jun 11, 2025 Coalition ESS Score
  • Jun 20, 2025 EPSS Score
  • Jun 30, 2025 EPSS Score
  • Jul 11, 2025 EPSS Score
  • Jul 21, 2025 EPSS Score
  • Jul 29, 2025 Coalition ESS Score
  • Aug 1, 2025 EPSS Score
  • Aug 11, 2025 EPSS Score
  • Aug 21, 2025 Coalition ESS Score
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