CVE-2025-7394

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2025-07-19. NVD baseline CVSS 9.8; sources differ by 0.0.

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

Also known asEUVD-2025-21938 (ENISA EUVD) · GHSA-jgh6-fqf6-cpj8 (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the OpenSSL compatibility layer implementation, the function RAND_poll() was not behaving as expected and leading to the potential for predictable values returned from RAND_bytes() after fork() is called. This can lead to weak or predictable random numbers generated in applications that are both using RAND_bytes() and doing fork() operations. This only affects applications explicitly calling RAND_bytes() after fork() and does not affect any internal TLS operations. Although RAND_bytes() documentation in OpenSSL calls out not being safe for use with fork() without first calling RAND_poll(), an additional code change was also made in wolfSSL to make RAND_bytes() behave similar to OpenSSL after a fork() call without calling RAND_poll(). Now the Hash-DRBG used gets reseeded after detecting running in a new process. If making use of RAND_bytes() and calling fork() we recommend updating to the latest version of wolfSSL. Thanks to Per Allansson from Appgate for the report.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
44
EG Risk 44/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 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
0.5%
EPSS %ILE
39th
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). 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 every mission impact level.CISA BOD 26-04: 60 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 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.

The score's inputs: 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

July 18, 2025

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Nov 1, 2026
Patch available.
Web page

wolfssl/ChangeLog.md at master · wolfSSL/wolfssl · GitHub

https://github.com/wolfSSL/wolfssl/blob/master/ChangeLog.md#wolfssl-release-582-july-17-2025

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
wolfssl4.6.0+p1-0+deb11u1 ... 5.9.2-1 (40 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
wolfssl5.5.4-2, 5.5.4-2+deb12u1
  • every version up to 5.5.4-2+deb12u2: fixed in 5.5.4-2+deb12u2
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
wolfssl5.7.2-0.1
  • every version up to 5.7.2-0.1+deb13u1: fixed in 5.7.2-0.1+deb13u1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 87× 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 99 of 244 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 145 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 00:29 UTCEG score recompute
  2. 2026-11-02 00:29 UTCVendor advisory
  3. 2026-11-02 00:29 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  4. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  5. 2026-10-31 23:45 UTCEG score recompute
  6. 2026-10-31 23:45 UTCVendor advisory
  7. 2026-10-31 23:44 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  8. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-10-30 23:00 UTCEG score recompute
  10. 2026-10-30 23:00 UTCVendor advisory
  11. 2026-10-30 22:59 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  12. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  13. 2026-10-29 22:14 UTCEG score recompute
  14. 2026-10-29 22:14 UTCVendor advisory
  15. 2026-10-29 22:14 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  16. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  17. 2026-10-28 21:29 UTCEG score recompute
  18. 2026-10-28 21:29 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  19. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-10-27 20:43 UTCEG score recompute
  21. 2026-10-27 20:43 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  22. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-10-26 19:58 UTCEG score recompute
  24. 2026-10-26 19:58 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  25. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 39th percentile
Show 74 more
  1. 2026-10-25 17:09 UTCEG score recompute
  2. 2026-10-25 17:09 UTCVendor advisory
  3. 2026-10-25 17:09 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  4. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  5. 2026-10-25 16:01 UTCEG score recompute
  6. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  7. 2026-10-24 16:23 UTCEG score recompute
  8. 2026-10-24 16:23 UTCVendor advisory
  9. 2026-10-24 16:22 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  10. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-10-23 15:37 UTCEG score recompute
  12. 2026-10-23 15:37 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  13. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  14. 2026-10-22 14:52 UTCEG score recompute
  15. 2026-10-22 14:51 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  16. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  17. 2026-10-21 14:07 UTCEG score recompute
  18. 2026-10-21 14:07 UTCVendor advisory
  19. 2026-10-21 14:07 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  20. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  21. 2026-10-20 13:06 UTCEG score recompute
  22. 2026-10-20 13:06 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  23. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  24. 2026-10-19 12:18 UTCEG score recompute
  25. 2026-10-19 12:18 UTCVendor advisory
  26. 2026-10-19 12:18 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  27. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  28. 2026-10-18 10:29 UTCVendor advisory
  29. 2026-10-18 10:28 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  30. 2026-10-18 05:15 UTCEG score recompute
  31. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  32. 2026-10-17 09:00 UTCEG score recompute
  33. 2026-10-17 09:00 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  34. 2026-10-16 16:39 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  35. 2026-10-16 08:13 UTCEG score recompute
  36. 2026-10-16 08:12 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  37. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  38. 2026-10-15 07:16 UTCEG score recompute
  39. 2026-10-15 07:16 UTCVendor advisory
  40. 2026-10-15 07:16 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  41. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  42. 2026-10-14 03:14 UTCEG score recompute
  43. 2026-10-14 03:13 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  44. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  45. 2026-10-12 23:14 UTCVendor advisory
  46. 2026-10-12 23:14 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  47. 2026-10-12 16:45 UTCEG score recompute
  48. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  49. 2026-10-12 10:02 UTCVendor advisory
  50. 2026-10-12 10:02 UTCGHSA enrichmentGHSA-jgh6-fqf6-cpj8 · GitHub severity HIGH · GitHub CVSS 9.8
  51. 2026-10-11 20:20 UTCEG score recompute
  52. 2026-10-11 18:32 UTCEG score recompute
  53. 2026-10-11 15:06 UTCEG score recompute
  54. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  55. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  56. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  57. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  58. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  59. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  60. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  61. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  62. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  63. 2026-10-02 08:41 UTCOSV refresh
  64. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  65. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  66. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  67. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  68. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  69. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  70. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  71. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  72. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  73. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  74. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.4% · 34th percentile

Frequently asked(5)

What is CVE-2025-7394?
CVE-2025-7394 is a critical-severity vulnerability; its CVE record was published on July 18, 2025. In the OpenSSL compatibility layer implementation, the function RAND_poll() was not behaving as expected and leading to the potential for predictable values returned from RAND_bytes() after fork() is called. This can lead to weak or predictable random numbers generated in applications that are both…
When was the CVE record for CVE-2025-7394 published?
The CVE record for CVE-2025-7394 was published on July 18, 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 June 17, 2026; the record at its source may have been updated since.
Is CVE-2025-7394 actively exploited?
CVE-2025-7394 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-7394?
CVE-2025-7394 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2025-7394?
A fix for CVE-2025-7394 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-7394 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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