CVE-2025-64186

HIGHNVD 6.58.7
EchelonGraph scoreMEDIUM confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score 8.7 from GitHub Security Advisory (severity: HIGH) published 2025-11-12. NVD baseline CVSS 6.5; sources differ by 2.2.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekElevated

Also known asEUVD-2025-131929 (ENISA EUVD) · GHSA-88h9-77c7-p6w4 (GitHub Security Advisories) · GO-2025-4112 (OSV.dev)Source: ENISA EUVD

8.7EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 6.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Evervault is a payment security solution. A vulnerability was identified in the evervault-go SDK’s attestation verification logic in versions of evervault-go prior to 1.3.2 that may allow incomplete documents to pass validation. This may cause the client to trust an enclave operator that does not meet expected integrity guarantees. The exploitability of this issue is limited in Evervault-hosted environments as an attacker would require the pre-requisite ability to serve requests from specific evervault domain names, following from our ACME challenge based TLS certificate acquisition pipeline. The vulnerability primarily affects applications which only check PCR8. Though the efficacy is also reduced for applications that check all PCR values, the impact is largely remediated by checking PCR 0, 1 and 2. The identified issue has been addressed in version 1.3.2 by validating attestation documents before storing in the cache, and replacing the naive equality checks with a new SatisfiedBy check. Those who useevervault-go to attest Enclaves that are hosted outside of Evervault environments and cannot upgrade have two possible workarounds available. Modify the application logic to fail verification if PCR8 is not explicitly present and non-empty and/or add custom pre-validation to reject documents that omit any required PCRs.

CVSS v3
6.5
EG Score
8.7HIGHmedium confidence
EG Risk
55
EG Risk 55/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity87% × 45%
Impact severity (EG Severity): CVSS 8.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.1%
EPSS %ILE
3rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.7): severity, escalated by confirmed exploitation. This CVE's 8.7 is its impact severity (EG Severity), not escalated.

EG Severity
8.7 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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

November 12, 2025

Last Modified

October 18, 2026

Advisory Details (3)

Auto-updated Oct 18, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr, github, github_commit.
GitHub advisoryMentions a patch (unverified)🟡 PoC Available

Incomplete PCR Validation in Enclave Attestation for non-Evervault hosted Enclaves · Advisory · evervault/evervault-go · GitHub

https://github.com/evervault/evervault-go/security/advisories/GHSA-88h9-77c7-p6w4
GitHub pull request Patch Available

Improve correctness of PCR check in enclaves Go SDK

Patch available: evervault/evervault-go v1.3.2 (PR #48 merged 2025-09-15)

https://github.com/evervault/evervault-go/pull/48
GitHub commit Patch Available

commit 7c824d289bba (evervault/evervault-go)

Patch available: evervault/evervault-go v1.3.2 (contains commit 7c824d289bba)

https://github.com/evervault/evervault-go/commit/7c824d289bba11ec0bea46a338023f5b128bbb28

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
gogithub.com/evervault/evervault-go @ 1.3.2 (fixes < 1.3.2)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/evervault/evervault-go—
  • every version up to 1.3.2: fixed in 1.3.2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 40× 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.

Showing the most recent 95 of 195 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 100 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-11-01 08:02 UTCGHSA enrichmentGHSA-88h9-77c7-p6w4 · GitHub severity HIGH · GitHub CVSS 8.7
  3. 2026-11-01 08:02 UTCEG score recompute▲ 2.20
  4. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  5. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-10-28 04:55 UTCOSV refresh
  9. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-10-25 16:11 UTCEG score recompute
  13. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  15. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-10-18 20:39 UTCEG score recompute
  20. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-10-18 05:20 UTCEG score recompute
  22. 2026-10-17 23:55 UTCEG score recompute
  23. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-10-16 16:39 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
Show 70 more
  1. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-12 16:50 UTCEG score recompute
  4. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  5. 2026-10-11 20:24 UTCEG score recompute
  6. 2026-10-11 18:36 UTCEG score recompute
  7. 2026-10-11 15:11 UTCEG score recompute
  8. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  9. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  11. 2026-10-08 17:10 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-10-02 01:11 UTCOSV refresh
  18. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  21. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  26. 2026-09-19 15:42 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  27. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  28. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  29. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  30. 2026-09-15 03:10 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  31. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  32. 2026-09-12 18:36 UTCOSV refresh
  33. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  34. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  35. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  36. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  37. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  38. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  39. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  40. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  41. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  42. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  43. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  44. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  45. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  46. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  47. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  48. 2026-08-24 23:44 UTCOSV refresh
  49. 2026-08-24 14:16 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  50. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  51. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  52. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  53. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  54. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  55. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  56. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  57. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  58. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  59. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  60. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  61. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  62. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  63. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  64. 2026-08-08 16:55 UTCOSV refresh
  65. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  66. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  67. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  68. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  69. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  70. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.1% · 3rd percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-64186?
CVE-2025-64186 is a high-severity vulnerability; its CVE record was published on November 12, 2025. Evervault is a payment security solution. A vulnerability was identified in the evervault-go SDK’s attestation verification logic in versions of evervault-go prior to 1.3.2 that may allow incomplete documents to pass validation. This may cause the client to trust an enclave operator that does not…
When was the CVE record for CVE-2025-64186 published?
The CVE record for CVE-2025-64186 was published on November 12, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 18, 2026; the record at its source may have been updated since.
Is CVE-2025-64186 actively exploited?
CVE-2025-64186 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-64186?
CVE-2025-64186 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + FIRST EPSS + GHSA into a combined EG score of 8.7 (HIGH).
How do I remediate CVE-2025-64186?
A fix for CVE-2025-64186 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-64186

Explore →

Is Your Infrastructure Affected by CVE-2025-64186?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs