An issue was discovered in Linux Containers (LXC) before 2016-02-22. When executing a program via lxc-attach, the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to push characters into the terminal's input buffer, allowing an attacker to escape the container.
Conclusion & alert: CVE-2016-10124 is rated Moderate Risk (49.9/100): CVSS High severity, with low exploitation likelihood (EPSS 0.22%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-03 | 0.28% | 0.22% | -0.06% |
| 2 | 2025-03-30 | 0.72% | 0.28% | -0.44% |
| 3 | 2025-03-29 | — | 0.72% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.6 | 3.0 | HIGH |
|
3.9 | 4.0 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-10124 not yet assigned priority: Debian including 1 source packages (lxc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-10124 |
gentoo
|
normal | CVE-2016-10124: 1 GLSA(s) (201711-09), 1 atom(s) (app-emulation/lxc); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-10124 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2016-10124/ |
ubuntu
|
medium | CVE-2016-10124 medium priority: Ubuntu including 1 source packages (lxc), 6 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): not-affected 3, released 2, ignored 1. | https://ubuntu.com/security/CVE-2016-10124 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| linuxcontainers | lxc | <= 2.0.0 | cpe:2.3:a:linuxcontainers:lxc:*:rc1:*:*:*:*:*:* |