CVE-2025-52565runc is a CLI tool for spawning and running containers according to the OCI specification.
Updated under an hour ago ()
Does this affect you?
It affects linuxfoundation runc. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-61, CWE-363
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linuxfoundation runc linuxfoundation:runc | from 1.0.1 before 1.2.8; from 1.3.0 before 1.3.3; 1.0.0; 1.0.0; 1.0.0; 1.0.0; 1.0.0; 1.0.0; and 9 more ranges | NVD |
References
- https://github.com/opencontainers/runc/commit/01de9d65dc72f67b256ef03f9bfb795a2bf143b4patch
- https://github.com/opencontainers/runc/commit/398955bccb7f20565c224a3064d331c19e422398patch
- https://github.com/opencontainers/runc/commit/531ef794e4ecd628006a865ad334a048ee2b4b2epatch
- https://github.com/opencontainers/runc/commit/9be1dbf4ac67d9840a043ebd2df5c68f36705d1dpatch
- https://github.com/opencontainers/runc/commit/aee7d3fe355dd02939d44155e308ea0052e0d53apatch
- https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64patch
- https://github.com/opencontainers/runc/commit/de87203e625cd7a27141fb5f2ad00a320c69c5e8patch
- https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480patch
- https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7rexploit, mitigation, patch, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.