CVE-2025-525658.4HighCWE-61

CVE-2025-52565: container escape due to /dev/console mount and related races

opencontainers · runc

Affected: opencontainers runc · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.8%probability of exploitation in the next 30 days

57th percentile

050100

Higher than 57% of scored CVEs

8.4HighCVSS 4.0

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

opencontainers · runc>= 1.0.0-rc3, < 1.2.8; >= 1.3.0-rc.1, < 1.3.3; >= 1.4.0-rc.1, < 1.4.0-rc.3

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: UNIX Symbolic Link (Symlink) Following · File and Path Handling
Vendor: opencontainers
Published: November 2025
Band: Unlikely (under 1%), November 2025

CoverageNo articles yet

No CyberSIXT article names CVE-2025-52565 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.