CVE-2017-9250

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

The lexer_process_char_literal function in jerry-core/parser/js/js-lexer.c in JerryScript 1.0 does not skip memory allocation for empty strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via malformed JavaScript source code, related to the jmem_heap_free_block function.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
39
EG Risk 39/100CISA SSVC

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
Severity75% × 45%
Exploitation3% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
2.5%
EPSS %ILE
84th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 28, 2017

Last Modified

June 17, 2026

References (8)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 29× 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 191 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2017-9250?
CVE-2017-9250 is a high vulnerability published on May 28, 2017. The lexerprocesscharliteral function in jerry-core/parser/js/js-lexer.c in JerryScript 1.0 does not skip memory allocation for empty strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via malformed JavaScript source code, related to…
When was CVE-2017-9250 disclosed?
CVE-2017-9250 was first published on May 28, 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-2017-9250 actively exploited?
CVE-2017-9250 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.5% probability of exploitation in the next 30 days (84th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-9250?
CVE-2017-9250 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2017-9250?
A fix for CVE-2017-9250 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

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