CVE-2025-52565

HIGH EPSS 40.5%
Published Nov 6, 20257mo ago · Modified Jun 17, 20261w ago
8.4 CVSS 4.0
High
Find Similar
Published Nov 6, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago

Description

runc is a CLI tool for spawning and running containers according to the OCI specification. Versions 1.0.0-rc3 through 1.2.7, 1.3.0-rc.1 through 1.3.2, and 1.4.0-rc.1 through 1.4.0-rc.2, due to insufficient checks when bind-mounting `/dev/pts/$n` to `/dev/console` inside the container, an attacker can trick runc into bind-mounting paths which would normally be made read-only or be masked onto a path that the attacker can write to. This attack is very similar in concept and application to CVE-2025-31133, except that it attacks a similar vulnerability in a different target (namely, the bind-mount of `/dev/pts/$n` to `/dev/console` as configured for all containers that allocate a console). This happens after `pivot_root(2)`, so this cannot be used to write to host files directly -- however, as with CVE-2025-31133, this can load to denial of service of the host or a container breakout by providing the attacker with a writable copy of `/proc/sysrq-trigger` or `/proc/sys/kernel/core_pattern` (respectively). This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.

CVSS Details

Base Score
8.4
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
40.5% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-363
CWE-61

Affected Products 17

VendorProductVersionRange
linuxfoundationrunc*≥1.0.1  –  <1.2.8
linuxfoundationrunc*≥1.3.0  –  <1.3.3
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.0.0any
linuxfoundationrunc1.4.0any
linuxfoundationrunc1.4.0any

References 9

  • github.com https://github.com/opencontainers/runc/commit/01de9d65dc72f67b256ef03f9bfb795a2bf143b4
    Patch
  • github.com https://github.com/opencontainers/runc/commit/398955bccb7f20565c224a3064d331c19e422398
    Patch
  • github.com https://github.com/opencontainers/runc/commit/531ef794e4ecd628006a865ad334a048ee2b4b2e
    Patch
  • github.com https://github.com/opencontainers/runc/commit/9be1dbf4ac67d9840a043ebd2df5c68f36705d1d
    Patch
  • github.com https://github.com/opencontainers/runc/commit/aee7d3fe355dd02939d44155e308ea0052e0d53a
    Patch
  • github.com https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64
    Patch
  • github.com https://github.com/opencontainers/runc/commit/de87203e625cd7a27141fb5f2ad00a320c69c5e8
    Patch
  • github.com https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480
    Patch
  • github.com https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7r
    ExploitMitigationPatchThird Party Advisory

Remediation

  • github.com https://github.com/opencontainers/runc/commit/01de9d65dc72f67b256ef03f9bfb795a2bf143b4
    Patch
  • github.com https://github.com/opencontainers/runc/commit/398955bccb7f20565c224a3064d331c19e422398
    Patch
  • github.com https://github.com/opencontainers/runc/commit/531ef794e4ecd628006a865ad334a048ee2b4b2e
    Patch
  • github.com https://github.com/opencontainers/runc/commit/9be1dbf4ac67d9840a043ebd2df5c68f36705d1d
    Patch
  • github.com https://github.com/opencontainers/runc/commit/aee7d3fe355dd02939d44155e308ea0052e0d53a
    Patch
  • github.com https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64
    Patch
  • github.com https://github.com/opencontainers/runc/commit/de87203e625cd7a27141fb5f2ad00a320c69c5e8
    Patch
  • github.com https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480
    Patch
  • github.com https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7r
    ExploitMitigationPatchThird Party Advisory