CVE-2026-17574

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-07-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

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

HDF5 contains a NULL pointer dereference vulnerability. Processing a crafted HDF5 file containing an attribute with an invalid variable-length datatype type field may cause the application to crash when the attribute is read.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: Track

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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

July 27, 2026

Last Modified

August 18, 2026

Advisory Details (1)

Auto-updated Jul 27, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 3fa6ed6e9dfe (HDFGroup/hdf5)

Fix landed in HDFGroup/hdf5 commit 3fa6ed6e9dfe — awaiting tagged release

https://github.com/HDFGroup/hdf5/commit/3fa6ed6e9dfeebbc784e21d8c48e31e35a8042bc

Vendor Advisories for CVE-2026-17574(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
hdf51.10.10+repack-1 ... 2.1.0+repack-1~exp9 (83 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
hdf51.10.10+repack-1 ... 2.2.0+repack-4 (76 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
hdf51.14.5+repack-3 ... 2.2.0+repack-4 (45 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
hdf51.14.5+repack-3 ... 2.2.0+repack-4 (45 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 68× 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 130 total refreshes for this CVE.

  1. 2026-09-15 09:09 UTCEG score recompute
  2. 2026-09-15 09:09 UTCGHSA enrichment
  3. 2026-09-14 03:23 UTCEG score recompute
  4. 2026-09-14 03:23 UTCGHSA enrichment
  5. 2026-09-13 16:46 UTCEPSS rescore
  6. 2026-09-13 04:37 UTCEG score recompute
  7. 2026-09-13 04:37 UTCGHSA enrichment
  8. 2026-09-12 15:00 UTCEPSS rescore
  9. 2026-09-12 05:51 UTCEG score recompute
  10. 2026-09-12 05:51 UTCGHSA enrichment
  11. 2026-09-11 14:52 UTCEPSS rescore
  12. 2026-09-11 09:36 UTCEPSS rescore
  13. 2026-09-11 07:05 UTCEG score recompute
  14. 2026-09-11 07:05 UTCGHSA enrichment
  15. 2026-09-10 09:34 UTCEPSS rescore
  16. 2026-09-10 08:16 UTCGHSA enrichment
  17. 2026-09-09 08:20 UTCEG score recompute
  18. 2026-09-09 08:20 UTCGHSA enrichment
  19. 2026-09-08 22:00 UTCEPSS rescore
  20. 2026-09-07 21:03 UTCEG score recompute
  21. 2026-09-07 21:03 UTCGHSA enrichment
  22. 2026-09-07 16:01 UTCEPSS rescore
  23. 2026-09-06 18:27 UTCEG score recompute
  24. 2026-09-06 18:27 UTCGHSA enrichment
  25. 2026-09-06 13:47 UTCEPSS rescore
Show 75 more
  1. 2026-09-05 19:15 UTCEG score recompute
  2. 2026-09-05 19:15 UTCGHSA enrichment
  3. 2026-09-04 12:32 UTCEG score recompute
  4. 2026-09-04 12:32 UTCGHSA enrichment
  5. 2026-09-04 05:06 UTCEPSS rescore
  6. 2026-09-01 22:58 UTCEG score recompute
  7. 2026-09-01 22:58 UTCGHSA enrichment
  8. 2026-09-01 13:53 UTCEPSS rescore
  9. 2026-08-30 22:39 UTCEG score recompute
  10. 2026-08-30 22:39 UTCGHSA enrichment
  11. 2026-08-30 19:17 UTCEPSS rescore
  12. 2026-08-30 01:22 UTCEPSS rescore
  13. 2026-08-29 23:52 UTCEG score recompute
  14. 2026-08-29 23:52 UTCGHSA enrichment
  15. 2026-08-28 21:41 UTCEPSS rescore
  16. 2026-08-27 14:25 UTCEPSS rescore
  17. 2026-08-27 10:16 UTCEG score recompute
  18. 2026-08-27 10:16 UTCGHSA enrichment
  19. 2026-08-26 14:46 UTCEPSS rescore
  20. 2026-08-26 11:29 UTCGHSA enrichment
  21. 2026-08-25 12:36 UTCEG score recompute
  22. 2026-08-25 12:36 UTCGHSA enrichment
  23. 2026-08-24 13:49 UTCEG score recompute
  24. 2026-08-24 13:49 UTCGHSA enrichment
  25. 2026-08-23 15:03 UTCEG score recompute
  26. 2026-08-23 15:03 UTCGHSA enrichment
  27. 2026-08-23 00:19 UTCEPSS rescore
  28. 2026-08-22 16:17 UTCEG score recompute
  29. 2026-08-22 16:17 UTCGHSA enrichment
  30. 2026-08-21 23:49 UTCEPSS rescore
  31. 2026-08-21 17:31 UTCEG score recompute
  32. 2026-08-21 17:31 UTCGHSA enrichment
  33. 2026-08-20 22:55 UTCEPSS rescore
  34. 2026-08-20 18:43 UTCGHSA enrichment
  35. 2026-08-19 19:57 UTCEG score recompute
  36. 2026-08-19 19:57 UTCGHSA enrichment
  37. 2026-08-19 17:03 UTCEPSS rescore
  38. 2026-08-18 19:04 UTCEG score recompute▲ 0.30
  39. 2026-08-18 19:04 UTCGHSA enrichment
  40. 2026-08-18 19:03 UTCNVD updateCVSS v3 → 5.5
  41. 2026-08-17 22:20 UTCEG score recompute
  42. 2026-08-17 22:20 UTCGHSA enrichment
  43. 2026-08-17 13:47 UTCEPSS rescore
  44. 2026-08-16 23:34 UTCEG score recompute
  45. 2026-08-16 23:34 UTCGHSA enrichment
  46. 2026-08-16 14:56 UTCEPSS rescore
  47. 2026-08-16 02:14 UTCEPSS rescore
  48. 2026-08-16 00:48 UTCGHSA enrichment
  49. 2026-08-15 02:01 UTCEG score recompute
  50. 2026-08-15 02:01 UTCGHSA enrichment
  51. 2026-08-15 01:30 UTCEPSS rescore
  52. 2026-08-14 03:15 UTCEG score recompute
  53. 2026-08-14 03:15 UTCGHSA enrichment
  54. 2026-08-13 22:00 UTCEPSS rescore
  55. 2026-08-13 04:30 UTCEG score recompute
  56. 2026-08-13 04:30 UTCGHSA enrichment
  57. 2026-08-12 13:50 UTCEPSS rescore
  58. 2026-08-12 05:44 UTCGHSA enrichment
  59. 2026-08-11 06:58 UTCEG score recompute
  60. 2026-08-11 06:57 UTCGHSA enrichment
  61. 2026-08-11 00:00 UTCEPSS rescore
  62. 2026-08-10 08:11 UTCEG score recompute
  63. 2026-08-10 08:11 UTCGHSA enrichment
  64. 2026-08-09 13:46 UTCEPSS rescore
  65. 2026-08-09 09:25 UTCEG score recompute
  66. 2026-08-09 09:25 UTCGHSA enrichment
  67. 2026-08-08 16:37 UTCEPSS rescore
  68. 2026-08-08 10:39 UTCEG score recompute
  69. 2026-08-08 10:39 UTCGHSA enrichment
  70. 2026-08-07 11:53 UTCEG score recompute
  71. 2026-08-07 11:53 UTCGHSA enrichment
  72. 2026-08-06 13:46 UTCEPSS rescore
  73. 2026-08-06 13:07 UTCEG score recompute
  74. 2026-08-06 13:07 UTCGHSA enrichment
  75. 2026-08-05 19:17 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-17574?
CVE-2026-17574 is a medium vulnerability published on July 27, 2026. HDF5 contains a NULL pointer dereference vulnerability. Processing a crafted HDF5 file containing an attribute with an invalid variable-length datatype type field may cause the application to crash when the attribute is read.
When was CVE-2026-17574 disclosed?
CVE-2026-17574 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17574 actively exploited?
CVE-2026-17574 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 98.9% of all scored CVEs.
What is the CVSS score of CVE-2026-17574?
CVE-2026-17574 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-17574?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17574, 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.

Dependency Blast Radius

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