USN-7851-1: runc-app Ubuntu
Vulnerability summary
USN-7851-1 is a vulnerability in runc-app Ubuntu with no CVSS score yet.
No CVSS vector published; no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 3 · Downstream 0 · Related 3Timeline
- 04-11-2025PublishedVulnerability first disclosed.
- 10-02-2026Last modifiedVulnerability information updated.
Description
runc-app, runc-stable vulnerabilities Lei Wang and Li Fubang discovered that runC incorrectly handled masked paths. An attacker could possibly replace a container's /dev/null with a symlink to some other procfs file and possibly escape a container. (CVE-2025-31133) Lei Wang and Li Fubang discovered that runC incorrectly handled the /dev/console bind-mounts. An attacker could potentially exploit this issue to build-mount a symlink and escape a container. (CVE-2025-52565) Li Fubang and Tõnis Tiigi discovered that the fix for CVE-2019-16884 was incomplete. An attacker could possibly use this issue to cause a denial of service or escape the container. (CVE-2025-52881)
CVSS metrics
Risk metrics not yet published.
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: not stated in public data.
Ubuntu2 products
- runc-app< 1.3.3-0ubuntu1~22.04.2 | < 1.3.3-0ubuntu1~24.04.2 | < 1.3.3-0ubuntu1~25.10.2
- runc-stable< 1.3.3-0ubuntu1~25.10.2
1 vendor · 2 products