CVE-2026-54389

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 5.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.2% (7th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from the CNA's CVSS
Sources: the CNA's CVSS, EPSS
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Ghidra before 12.1.3 contains an uncontrolled resource consumption vulnerability in the PDB parser that allows attackers to terminate the Ghidra process by supplying a crafted PDB file with an oversized parameters section. The AbstractPdb deserialization routine reads all remaining parameters into an unbounded list, causing uncontrolled heap growth that triggers an OutOfMemoryError which bypasses exception handling and crashes the application.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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 (value × EchelonGraph’s weight)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 20, 2026

Last Modified

October 1, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
Patch available. Sources: github_release, github.
GitHub advisoryMentions a patch (unverified)

PDB Parser Resource Consumption · Advisory · NationalSecurityAgency/ghidra · GitHub

https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-f75p-8cqj-9v3g
GitHub release Patch Available

Ghidra 12.1.3

Patch available: NationalSecurityAgency/ghidra Ghidra_12.1.3_build

https://github.com/NationalSecurityAgency/ghidra/releases/tag/Ghidra_12.1.3_build

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 49× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-10-12 15:56 UTCEG score recompute
  4. 2026-10-11 19:39 UTCEG score recompute
  5. 2026-10-11 16:54 UTCEG score recompute
  6. 2026-10-11 14:18 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  10. 2026-10-09 06:13 UTCEG score recompute
  11. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-08 05:06 UTCEG score recompute
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-10-07 03:49 UTCEG score recompute
  15. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-06 03:07 UTCEG score recompute
  17. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-03 16:44 UTCEG score recompute
  20. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-02 15:52 UTCEG score recompute
  23. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-01 15:28 UTCEG score recompute
  25. 2026-10-01 08:27 UTCEG score recompute
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  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-09-30 08:03 UTCEG score recompute
  3. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-09-29 03:44 UTCEG score recompute
  5. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-09-28 03:10 UTCEG score recompute
  7. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  8. 2026-09-27 02:47 UTCEG score recompute
  9. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-09-24 21:21 UTCEG score recompute
  11. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-09-24 10:29 UTCEG score recompute
  13. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-09-23 10:06 UTCEG score recompute
  15. 2026-09-22 09:42 UTCEG score recompute
  16. 2026-09-21 09:19 UTCEG score recompute
  17. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-09-20 08:56 UTCEG score recompute
  19. 2026-09-19 05:50 UTCEG score recompute
  20. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-09-17 05:03 UTCEG score recompute
  22. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-09-15 04:11 UTCEG score recompute
  25. 2026-09-14 03:48 UTCEG score recompute
  26. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  27. 2026-09-13 03:25 UTCEG score recompute
  28. 2026-09-12 03:01 UTCEG score recompute
  29. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  30. 2026-09-11 02:37 UTCEG score recompute
  31. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  32. 2026-09-09 01:51 UTCEG score recompute
  33. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  34. 2026-09-08 00:59 UTCEG score recompute
  35. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  36. 2026-09-07 00:36 UTCEG score recompute
  37. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  38. 2026-09-06 00:13 UTCEG score recompute
  39. 2026-09-04 23:49 UTCEG score recompute
  40. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  41. 2026-09-02 21:42 UTCEG score recompute
  42. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  43. 2026-09-01 21:14 UTCEG score recompute
  44. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  45. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  46. 2026-08-30 20:15 UTCEG score recompute
  47. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  48. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  49. 2026-08-29 19:50 UTCEG score recompute
  50. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  51. 2026-08-27 18:19 UTCEG score recompute
  52. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  53. 2026-08-26 17:53 UTCEG score recompute
  54. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  55. 2026-08-25 16:25 UTCEG score recompute
  56. 2026-08-25 15:50 UTCEG score recompute
  57. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  58. 2026-08-25 13:05 UTCEG score recompute
  59. 2026-08-24 12:40 UTCEG score recompute
  60. 2026-08-23 12:17 UTCEG score recompute
  61. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  62. 2026-08-22 11:54 UTCEG score recompute
  63. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  64. 2026-08-20 22:17 UTCEG score recomputeFirst assessed: 5.5 MEDIUM
  65. 2026-08-20 22:16 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-54389?
CVE-2026-54389 is a medium-severity vulnerability; its CVE record was published on August 20, 2026. Ghidra before 12.1.3 contains an uncontrolled resource consumption vulnerability in the PDB parser that allows attackers to terminate the Ghidra process by supplying a crafted PDB file with an oversized parameters section. The AbstractPdb deserialization routine reads all remaining parameters into…
When was CVE-2026-54389 made public?
CVE-2026-54389 was made public on August 19, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 20, 2026. EchelonGraph's copy of the record carries a last-modified date of October 1, 2026; the record at its source may have been updated since.
Is CVE-2026-54389 actively exploited?
CVE-2026-54389 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54389?
CVE-2026-54389 has a CVSS base score of 5.5 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-54389?
A fix for CVE-2026-54389 is available: update to the fixed version the vendor names in its advisory.

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