CVE-2017-20225

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-28. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

TiEmu 2.08 and prior contains a stack-based buffer overflow vulnerability that allows attackers to execute arbitrary code by exploiting inadequate boundary checks on user-supplied input. Attackers can trigger the overflow through command-line arguments passed to the application, leveraging ROP gadgets to bypass protections and execute shellcode in the application context.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

March 28, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

TiEmu 2.08 Stack-Based Buffer Overflow Vulnerability | Advisories | VulnCheck

https://www.vulncheck.com/advisories/tiemu-stack-based-buffer-overflow-vulnerability
generic🟡 PoC Available

TiEmu 2.08 - Local Buffer Overflow - Windows local Exploit

https://www.exploit-db.com/exploits/42087
generic

Welcome to the TiEmu web site

http://lpg.ticalc.org/prj_tiemu/

Affected Packages

(2 across 2 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
tiemu3.04~git20110801-nogdb+dfsg1-2, 3.04~git20200827.f327e1c+dfsg1-1, 3.04~git20200827.f327e1c+dfsg1-2, 3.04~git20220826.cda2db4+dfsg-1, 3.04~git20220826.cda2db4+dfsg-2——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
tiemu3.04~git20220826.cda2db4+dfsg-2——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 24× 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 197 total refreshes for this CVE.

  1. 2026-09-15 03:05 UTCEPSS rescore
  2. 2026-09-15 03:05 UTCEPSS rescore
  3. 2026-09-13 16:42 UTCEPSS rescore
  4. 2026-09-12 14:55 UTCEPSS rescore
  5. 2026-09-11 09:31 UTCEPSS rescore
  6. 2026-09-07 15:56 UTCEPSS rescore
  7. 2026-09-06 13:43 UTCEPSS rescore
  8. 2026-09-05 15:23 UTCEPSS rescore
  9. 2026-09-04 13:56 UTCEPSS rescore
  10. 2026-09-02 14:07 UTCEPSS rescore
  11. 2026-09-02 14:07 UTCEPSS rescore
  12. 2026-09-01 03:31 UTCEPSS rescore
  13. 2026-08-30 19:13 UTCEPSS rescore
  14. 2026-08-27 14:21 UTCEPSS rescore
  15. 2026-08-26 14:41 UTCEPSS rescore
  16. 2026-08-25 13:44 UTCEPSS rescore
  17. 2026-08-21 23:44 UTCEPSS rescore
  18. 2026-08-20 22:51 UTCEPSS rescore
  19. 2026-08-19 16:59 UTCEPSS rescore
  20. 2026-08-18 13:43 UTCEPSS rescore
  21. 2026-08-17 13:42 UTCEPSS rescore
  22. 2026-08-16 14:51 UTCEPSS rescore
  23. 2026-08-16 09:54 UTCEG score recompute
  24. 2026-08-16 09:54 UTCGHSA enrichment
  25. 2026-08-16 02:10 UTCEPSS rescore
Show 75 more
  1. 2026-08-15 01:26 UTCEPSS rescore
  2. 2026-08-14 23:23 UTCGHSA enrichment
  3. 2026-08-14 19:10 UTCGHSA enrichment
  4. 2026-08-14 14:39 UTCGHSA enrichment
  5. 2026-08-14 10:26 UTCGHSA enrichment
  6. 2026-08-14 06:13 UTCEG score recompute
  7. 2026-08-14 06:13 UTCGHSA enrichment
  8. 2026-08-13 00:45 UTCGHSA enrichment
  9. 2026-08-12 20:32 UTCEG score recompute
  10. 2026-08-12 20:32 UTCGHSA enrichment
  11. 2026-08-12 13:46 UTCEPSS rescore
  12. 2026-08-12 00:55 UTCGHSA enrichment
  13. 2026-08-11 20:42 UTCEG score recompute
  14. 2026-08-11 20:42 UTCGHSA enrichment
  15. 2026-08-11 07:56 UTCGHSA enrichment
  16. 2026-08-11 03:43 UTCEG score recompute
  17. 2026-08-11 03:43 UTCGHSA enrichment
  18. 2026-08-10 10:29 UTCGHSA enrichment
  19. 2026-08-10 06:16 UTCGHSA enrichment
  20. 2026-08-10 01:57 UTCGHSA enrichment
  21. 2026-08-09 21:30 UTCGHSA enrichment
  22. 2026-08-09 17:17 UTCEG score recompute
  23. 2026-08-09 17:17 UTCGHSA enrichment
  24. 2026-08-09 13:42 UTCEPSS rescore
  25. 2026-08-09 13:04 UTCGHSA enrichment
  26. 2026-08-09 05:47 UTCEG score recompute
  27. 2026-08-09 05:47 UTCGHSA enrichment
  28. 2026-08-08 09:05 UTCGHSA enrichment
  29. 2026-08-08 04:52 UTCGHSA enrichment
  30. 2026-08-08 00:39 UTCGHSA enrichment
  31. 2026-08-07 20:26 UTCEG score recompute
  32. 2026-08-07 20:26 UTCGHSA enrichment
  33. 2026-08-07 16:22 UTCEPSS rescore
  34. 2026-08-07 16:13 UTCGHSA enrichment
  35. 2026-08-06 18:32 UTCEG score recompute
  36. 2026-08-06 18:32 UTCGHSA enrichment
  37. 2026-08-06 13:42 UTCEPSS rescore
  38. 2026-08-06 09:09 UTCGHSA enrichment
  39. 2026-08-06 04:56 UTCGHSA enrichment
  40. 2026-08-06 00:43 UTCEG score recompute
  41. 2026-08-06 00:43 UTCGHSA enrichment
  42. 2026-08-05 19:12 UTCEPSS rescore
  43. 2026-08-04 15:05 UTCEPSS rescore
  44. 2026-08-04 03:56 UTCGHSA enrichment
  45. 2026-08-03 23:03 UTCEG score recompute
  46. 2026-08-03 23:03 UTCGHSA enrichment
  47. 2026-08-02 23:34 UTCGHSA enrichment
  48. 2026-08-02 19:21 UTCGHSA enrichment
  49. 2026-08-02 15:08 UTCEG score recompute
  50. 2026-08-02 15:08 UTCGHSA enrichment
  51. 2026-08-02 02:23 UTCEPSS rescore
  52. 2026-08-01 04:11 UTCEPSS rescore
  53. 2026-07-30 16:24 UTCEPSS rescore
  54. 2026-07-30 01:26 UTCEPSS rescore
  55. 2026-07-28 15:32 UTCEPSS rescore
  56. 2026-07-26 14:51 UTCEPSS rescore
  57. 2026-07-23 14:15 UTCEPSS rescore
  58. 2026-07-23 01:28 UTCEG score recompute
  59. 2026-07-22 22:08 UTCEG score recompute
  60. 2026-07-22 14:04 UTCEPSS rescore
  61. 2026-07-22 14:04 UTCEPSS rescore
  62. 2026-07-21 15:21 UTCEPSS rescore
  63. 2026-07-21 15:21 UTCEPSS rescore
  64. 2026-07-20 17:04 UTCEPSS rescore
  65. 2026-07-19 14:28 UTCEPSS rescore
  66. 2026-07-19 14:28 UTCEPSS rescore
  67. 2026-07-19 02:26 UTCEPSS rescore
  68. 2026-07-19 02:26 UTCEPSS rescore
  69. 2026-07-18 10:00 UTCEPSS rescore
  70. 2026-07-16 16:59 UTCEPSS rescore
  71. 2026-07-16 16:59 UTCEPSS rescore
  72. 2026-07-15 16:54 UTCEPSS rescore
  73. 2026-07-15 01:56 UTCEPSS rescore
  74. 2026-07-15 01:56 UTCEPSS rescore
  75. 2026-07-13 22:26 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-20225?
CVE-2017-20225 is a critical vulnerability published on March 28, 2026. TiEmu 2.08 and prior contains a stack-based buffer overflow vulnerability that allows attackers to execute arbitrary code by exploiting inadequate boundary checks on user-supplied input. Attackers can trigger the overflow through command-line arguments passed to the application, leveraging ROP…
When was CVE-2017-20225 disclosed?
CVE-2017-20225 was first published in the National Vulnerability Database on March 28, 2026, 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-2017-20225 actively exploited?
CVE-2017-20225 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.6% of all scored CVEs.
What is the CVSS score of CVE-2017-20225?
CVE-2017-20225 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-20225?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-20225, 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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