CVE-2026-30479

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-09. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

A Dynamic-link Library Injection vulnerability in OSGeo Project MapServer before v8.0 allows attackers to execute arbitrary code via a crafted executable.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
72(Attend)
EG Risk 72/100SSVC: 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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

April 9, 2026

Last Modified

April 14, 2026

Advisory Details (2)

Auto-updated Aug 1, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Research/CVE-2026-30479 at main · penjaminTester/Research · GitHub

https://github.com/penjaminTester/Research/tree/main/CVE-2026-30479
generic

Welcome to MapServer — MapServer 8.6.5 documentation

https://mapserver.org/index.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 77× 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 219 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-30479?
CVE-2026-30479 is a critical vulnerability published on April 9, 2026. A Dynamic-link Library Injection vulnerability in OSGeo Project MapServer before v8.0 allows attackers to execute arbitrary code via a crafted executable.
When was CVE-2026-30479 disclosed?
CVE-2026-30479 was first published in the National Vulnerability Database on April 9, 2026, with the most recent update on April 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-30479 actively exploited?
CVE-2026-30479 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.1% of all scored CVEs.
What is the CVSS score of CVE-2026-30479?
CVE-2026-30479 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-30479?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-30479, 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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