CVE-2017-5226

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 10.0Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

When executing a program via the bubblewrap sandbox, 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 sandbox.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity100% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
87%
KEV
Not listed

Published

March 29, 2017

Last Modified

June 17, 2026

Advisory Details (7)

Auto-updated Aug 19, 2026
Patch available. Sources: redhat, github_commit.
generic

CVE-2017-5226 - PSIRT.COM

http://www.securityfocus.com/bid/97260
generic

oss-security - flatpak: CVE-2023-28100: TIOCLINUX can send commands outside sandbox if running on a virtual console

http://www.openwall.com/lists/oss-security/2023/03/17/1
generic

oss-security - WebKitGTK and WPE WebKit Security Advisory WSA-2020-0006

http://www.openwall.com/lists/oss-security/2020/07/10/1
generic

oss-security - TTY pushback vulnerabilities / TIOCSTI

https://www.openwall.com/lists/oss-security/2023/03/14/2
generic

CVE-2017-5226 -- bubblewrap escape via TIOCSTI ioctl · Issue #142 · containers/bubblewrap · GitHub

https://github.com/projectatomic/bubblewrap/issues/142
github_commit Patch Available

commit d7fc532c42f0 (projectatomic/bubblewrap)

Patch available: projectatomic/bubblewrap v0.1.6 (contains commit d7fc532c42f0)

https://github.com/projectatomic/bubblewrap/commit/d7fc532c42f0e9bf427923bab85433282b3e5117
redhat Patch Available

1411811 – (CVE-2017-5226) CVE-2017-5226 bubblewrap: Nonprivileged session can escape to the parent session by using the TIOCSTI ioctl

https://bugzilla.redhat.com/show_bug.cgi?id=1411811

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
bubblewrap—0.1.5-2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
bubblewrap—0.1.5-2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
bubblewrap—0.1.5-2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
bubblewrap—0.1.5-2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 125 total refreshes for this CVE.

  1. 2026-08-20 22:51 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-5226?
CVE-2017-5226 is a critical vulnerability published on March 29, 2017. When executing a program via the bubblewrap sandbox, 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 sandbox.
When was CVE-2017-5226 disclosed?
CVE-2017-5226 was first published in the National Vulnerability Database on March 29, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-5226 actively exploited?
CVE-2017-5226 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 13.0% of all scored CVEs.
What is the CVSS score of CVE-2017-5226?
CVE-2017-5226 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2017-5226?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-5226, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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