CVE-2026-7786

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-29. A secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (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

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

Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter device firmware contains plaintext administrative credentials embedded in the firmware image. These credentials can be extracted through firmware analysis and used to authenticate to device services.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.5%
EPSS %ILE
42nd
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 2026-10-19). 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 or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

May 29, 2026

Last Modified

July 21, 2026

Advisory Details (2)

Auto-updated Oct 18, 2026
No fix on record yet. Sources: cisa.
CISA

Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-148-02
Web page

CSAF/csaf_files/OT/white/2026/icsa-26-148-02.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-148-02.json

Vendor Advisories for CVE-2026-7786(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 50× 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 443 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 348 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-20 00:22 UTCEG score recompute
  2. 2026-10-20 00:21 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-10-18 22:15 UTCEG score recompute
  5. 2026-10-18 22:15 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-10-18 03:11 UTCEG score recompute
  8. 2026-10-17 20:26 UTCEG score recompute
  9. 2026-10-17 20:26 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-16 18:38 UTCEG score recompute
  12. 2026-10-16 18:38 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-15 15:13 UTCEG score recompute
  16. 2026-10-15 15:13 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-14 09:36 UTCEG score recompute
  19. 2026-10-14 09:36 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-10-13 07:16 UTCEG score recompute
  22. 2026-10-13 07:16 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-10-12 15:37 UTCEG score recompute
  25. 2026-10-12 05:27 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
Show 70 more
  1. 2026-10-11 19:23 UTCEG score recompute
  2. 2026-10-11 16:39 UTCEG score recompute
  3. 2026-10-11 13:57 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  7. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  21. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  23. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  25. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  26. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  27. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  28. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  29. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  30. 2026-09-14 06:25 UTCEG score recompute
  31. 2026-09-14 06:25 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  33. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  34. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  35. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  36. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  37. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  38. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  39. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  40. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  41. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  42. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  43. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  44. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  45. 2026-08-25 04:20 UTCEG score recompute
  46. 2026-08-25 04:20 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  47. 2026-08-24 14:18 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  48. 2026-08-23 21:59 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  49. 2026-08-23 18:04 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-08-23 14:12 UTCEG score recompute
  51. 2026-08-23 14:12 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  53. 2026-08-22 00:18 UTCEG score recompute
  54. 2026-08-22 00:18 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  56. 2026-08-21 20:19 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-08-21 15:09 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  58. 2026-08-21 07:44 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-08-21 01:19 UTCEG score recompute
  60. 2026-08-21 01:19 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  61. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  62. 2026-08-20 21:25 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  63. 2026-08-20 17:31 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-08-20 10:26 UTCEG score recompute
  65. 2026-08-20 10:26 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  67. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  68. 2026-08-17 14:39 UTCEG score recompute
  69. 2026-08-17 14:39 UTCGHSA enrichmentGHSA-79x3-xvpv-235q · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile

Frequently asked(5)

What is CVE-2026-7786?
CVE-2026-7786 is a critical-severity vulnerability; its CVE record was published on May 29, 2026. Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter device firmware contains plaintext administrative credentials embedded in the firmware image. These credentials can be extracted through firmware analysis and used to authenticate to device services.
When was CVE-2026-7786 made public?
CVE-2026-7786 was made public on May 28, 2026: that is the date its CVE record's CNA, Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS), gives for when the vulnerability was made public. The CVE record itself was published on May 29, 2026. EchelonGraph's copy of the record carries a last-modified date of July 21, 2026; the record at its source may have been updated since.
Is CVE-2026-7786 actively exploited?
CVE-2026-7786 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-7786?
CVE-2026-7786 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-7786?
No fix for CVE-2026-7786 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-7786 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-7786

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