CVE-2026-57239

HIGHNVD 7.88.2▲
EchelonGraph scoreMEDIUM confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-07-08. NVD baseline CVSS 7.8; sources differ by 0.4.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.2EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: Elevated riskExposed services: Not assessed

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

The user-controllable executable files will be directly executed by high-privilege processes, allowing low-privilege users to have the opportunity to elevate their privileges to NT AUTHORITY\SYSTEM.

CVSS v3
7.8
EG Score
8.2HIGHmedium confidence
EG Risk
53
EG Risk 53/100CISA 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
Severity82% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

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

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). 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

July 8, 2026

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 8, 2026
No fix on record yet.
generic

Security Bulletins | Foxit

https://www.foxit.com/support/security-bulletins.html

Vendor Advisories for CVE-2026-57239(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 43× 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 230 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

  • GitHub PoCParadoxis/CVE-2026-57239
    Published Jul 8, 2026

    Proof of concept exploit for CVE-2026-3775/CVE-2026-3780 and CVE-2026-57239 which lets you obtain NT AUTHORITY\SYSTEM rights via the Foxit PDF Reader updater service.

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57239?
CVE-2026-57239 is a high vulnerability published on July 8, 2026. The user-controllable executable files will be directly executed by high-privilege processes, allowing low-privilege users to have the opportunity to elevate their privileges to NT AUTHORITY\SYSTEM.
When was CVE-2026-57239 disclosed?
CVE-2026-57239 was first published on July 8, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57239 actively exploited?
CVE-2026-57239 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57239?
CVE-2026-57239 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.2 (HIGH).
How do I remediate CVE-2026-57239?
No fix for CVE-2026-57239 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-57239 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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