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
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 10.0Exploit: NoneExposed: 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)
EPSS
86.5%
KEV
Not listed

Published

March 29, 2017

Last Modified

May 13, 2026

Advisory Details (7)

Auto-updated Jun 30, 2026
Patch available. Sources: redhat, github_commit.
generic
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

Data Freshness Timeline

(refreshed 11× in last 7d / 37× 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.

  1. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 16:24 UTCEPSS rescore
  4. 2026-07-06 02:20 UTCEPSS rescore
  5. 2026-07-06 02:20 UTCEPSS rescore
  6. 2026-07-05 02:27 UTCEPSS rescore
  7. 2026-07-04 06:28 UTCEPSS rescore
  8. 2026-07-02 16:54 UTCEPSS rescore
  9. 2026-07-01 15:02 UTCEPSS rescore
  10. 2026-06-30 23:19 UTCEPSS rescore
  11. 2026-06-30 23:19 UTCEPSS rescore
  12. 2026-06-28 14:04 UTCEPSS rescore
  13. 2026-06-28 04:53 UTCEPSS rescore
  14. 2026-06-27 03:06 UTCEPSS rescore
  15. 2026-06-27 03:05 UTCEPSS rescore
  16. 2026-06-25 13:47 UTCEPSS rescore
  17. 2026-06-24 14:02 UTCEPSS rescore
  18. 2026-06-24 14:02 UTCEPSS rescore
  19. 2026-06-22 14:23 UTCEPSS rescore
  20. 2026-06-22 14:23 UTCEPSS rescore
  21. 2026-06-21 14:54 UTCEPSS rescore
  22. 2026-06-21 14:54 UTCEPSS rescore
  23. 2026-06-21 01:57 UTCEPSS rescore
  24. 2026-06-21 01:57 UTCEPSS rescore
  25. 2026-06-19 19:23 UTCEPSS rescore
Show 63 more
  1. 2026-06-19 19:23 UTCEPSS rescore
  2. 2026-06-19 12:25 UTCOSV refresh
  3. 2026-06-18 17:50 UTCEPSS rescore
  4. 2026-06-17 17:50 UTCEPSS rescore
  5. 2026-06-16 17:50 UTCEPSS rescore
  6. 2026-06-16 17:50 UTCEPSS rescore
  7. 2026-06-15 17:45 UTCEPSS rescore
  8. 2026-06-14 23:14 UTCEPSS rescore
  9. 2026-06-13 22:57 UTCEPSS rescore
  10. 2026-06-12 23:09 UTCEPSS rescore
  11. 2026-06-10 22:15 UTCEPSS rescore
  12. 2026-06-10 13:19 UTCEPSS rescore
  13. 2026-06-07 15:22 UTCEPSS rescore
  14. 2026-06-07 15:22 UTCEPSS rescore
  15. 2026-06-06 13:45 UTCEPSS rescore
  16. 2026-06-06 13:45 UTCEPSS rescore
  17. 2026-06-05 22:44 UTCEPSS rescore
  18. 2026-06-05 06:08 UTCEPSS rescore
  19. 2026-06-05 06:08 UTCEPSS rescore
  20. 2026-06-04 13:10 UTCEPSS rescore
  21. 2026-06-02 20:11 UTCEPSS rescore
  22. 2026-06-02 20:11 UTCEPSS rescore
  23. 2026-05-31 22:28 UTCEPSS rescore
  24. 2026-05-31 22:28 UTCEPSS rescore
  25. 2026-05-31 00:14 UTCEPSS rescore
  26. 2026-05-31 00:14 UTCEPSS rescore
  27. 2026-05-30 20:23 UTCOSV refresh
  28. 2026-05-29 13:41 UTCEPSS rescore
  29. 2026-05-28 13:42 UTCEPSS rescore
  30. 2026-05-28 13:42 UTCEPSS rescore
  31. 2026-05-27 13:38 UTCEPSS rescore
  32. 2026-05-27 13:38 UTCEPSS rescore
  33. 2026-05-26 13:42 UTCEPSS rescore
  34. 2026-05-26 13:42 UTCEPSS rescore
  35. 2026-05-22 21:15 UTCEPSS rescore
  36. 2026-05-22 21:15 UTCEPSS rescore
  37. 2026-05-22 21:15 UTCEPSS rescore
  38. 2026-05-22 21:15 UTCEPSS rescore
  39. 2026-05-22 21:15 UTCEPSS rescore
  40. 2026-05-21 22:40 UTCEPSS rescore
  41. 2026-05-20 22:37 UTCEPSS rescore
  42. 2026-05-20 22:37 UTCEPSS rescore
  43. 2026-05-20 22:37 UTCEPSS rescore
  44. 2026-05-20 11:21 UTCEPSS rescore
  45. 2026-05-20 11:21 UTCEPSS rescore
  46. 2026-05-20 08:12 UTCEG score recompute
  47. 2026-05-20 08:12 UTCGHSA enrichment
  48. 2026-05-20 03:57 UTCEG score recompute
  49. 2026-05-20 03:57 UTCGHSA enrichment
  50. 2026-05-19 23:42 UTCEG score recompute
  51. 2026-05-19 23:42 UTCGHSA enrichment
  52. 2026-05-19 19:27 UTCEG score recompute
  53. 2026-05-19 19:27 UTCGHSA enrichment
  54. 2026-05-19 15:12 UTCEG score recompute
  55. 2026-05-19 15:12 UTCGHSA enrichment
  56. 2026-05-19 10:57 UTCEG score recompute
  57. 2026-05-19 10:56 UTCGHSA enrichment
  58. 2026-05-19 06:40 UTCEG score recompute
  59. 2026-05-19 06:40 UTCGHSA enrichment
  60. 2026-05-19 02:25 UTCEG score recompute
  61. 2026-05-19 02:25 UTCGHSA enrichment
  62. 2026-05-18 22:11 UTCEG score recompute
  63. 2026-05-18 21:30 UTCEPSS rescore

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 May 13, 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 86.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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