CVE-2026-70062

HIGHPre-NVD 8.18.1
EchelonGraph scoreHIGH confidence

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

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-10-13. The CNA's CVSS baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 4 sources updated this week

Also known asEUVD-2026-99146 (ENISA EUVD) · GHSA-g6pv-h986-vxr8 (GitHub Security Advisories)Source: ENISA EUVD

8.1EG
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: 0.8%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Double free in Windows Libarchive allows an unauthorized attacker to execute code over a network.

CVSS v3
8.1
EG Score
8.1HIGHhigh confidence
EG Risk
37
EG Risk 37/100

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)
Severity81% × 45%
Impact severity (EG Severity): CVSS 8.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.8% × 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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (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.
EPSS PROB
0.8%
EPSS %ILE
55th
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 (8.1): severity, escalated by confirmed exploitation. This CVE's 8.1 is its impact severity (EG Severity), not escalated.

EG Severity
8.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.8% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-30). 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; Track* at high (mission-essential systems).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 or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (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

October 13, 2026

Last Modified

October 31, 2026

Advisory Details (1)

Auto-updated Oct 13, 2026
Patch available. Sources: microsoft.
Microsoft

Security Update Guide - Microsoft Security Response Center

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70062

Vendor Advisories for CVE-2026-70062(2)

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 24× in last 7d / 89× 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. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  2. 2026-10-31 16:23 UTCVendor advisory
  3. 2026-10-31 16:23 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  4. 2026-10-30 19:20 UTCEG score recompute
  5. 2026-10-30 19:20 UTCVendor advisory
  6. 2026-10-30 19:20 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  7. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  8. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  9. 2026-10-29 15:21 UTCVendor advisory
  10. 2026-10-29 15:21 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  11. 2026-10-28 18:53 UTCEG score recompute
  12. 2026-10-28 18:53 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  13. 2026-10-28 16:48 UTCEG score recompute
  14. 2026-10-28 16:48 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  15. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  16. 2026-10-27 21:30 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  17. 2026-10-27 20:48 UTCEG score recompute
  18. 2026-10-27 20:48 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  19. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  20. 2026-10-26 20:45 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  21. 2026-10-26 19:41 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  22. 2026-10-26 17:57 UTCEG score recompute
  23. 2026-10-26 17:57 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  24. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  25. 2026-10-25 18:45 UTCVendor advisory
Show 64 more
  1. 2026-10-25 18:44 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  2. 2026-10-25 17:19 UTCEG score recompute
  3. 2026-10-25 17:19 UTCVendor advisory
  4. 2026-10-25 17:19 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  5. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  6. 2026-10-25 14:09 UTCEG score recompute
  7. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  8. 2026-10-23 22:36 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  9. 2026-10-23 17:56 UTCEG score recompute
  10. 2026-10-23 17:55 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  11. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  12. 2026-10-22 22:21 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  13. 2026-10-22 21:53 UTCEG score recompute
  14. 2026-10-22 21:53 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  15. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  16. 2026-10-22 15:39 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  17. 2026-10-21 20:58 UTCVendor advisory
  18. 2026-10-21 20:58 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  19. 2026-10-21 16:41 UTCEG score recompute
  20. 2026-10-21 16:41 UTCVendor advisory
  21. 2026-10-21 16:41 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  22. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  23. 2026-10-20 22:22 UTCVendor advisory
  24. 2026-10-20 22:21 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  25. 2026-10-20 18:46 UTCEG score recompute
  26. 2026-10-20 18:46 UTCVendor advisory
  27. 2026-10-20 18:46 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  28. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  29. 2026-10-19 23:55 UTCVendor advisory
  30. 2026-10-19 23:55 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  31. 2026-10-19 19:47 UTCEG score recompute
  32. 2026-10-19 19:47 UTCVendor advisory
  33. 2026-10-19 19:46 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  34. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  35. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  36. 2026-10-18 03:18 UTCEG score recompute
  37. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  38. 2026-10-16 23:27 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  39. 2026-10-16 21:24 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  40. 2026-10-16 20:39 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  41. 2026-10-16 17:38 UTCEG score recompute
  42. 2026-10-16 17:38 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  43. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  44. 2026-10-16 16:12 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  45. 2026-10-16 13:27 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  46. 2026-10-15 22:42 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  47. 2026-10-15 22:01 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  48. 2026-10-15 21:10 UTCEG score recompute
  49. 2026-10-15 21:10 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  50. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  51. 2026-10-14 18:05 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  52. 2026-10-14 17:15 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  53. 2026-10-14 16:39 UTCEG score recompute
  54. 2026-10-14 16:39 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  55. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  56. 2026-10-13 22:25 UTCEG score recompute
  57. 2026-10-13 22:25 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  58. 2026-10-13 21:56 UTCEG score recompute
  59. 2026-10-13 21:56 UTCGHSA enrichmentGHSA-g6pv-h986-vxr8 · GitHub severity HIGH · GitHub CVSS 8.1
  60. 2026-10-13 21:23 UTCEG score recompute
  61. 2026-10-13 20:48 UTCEG score recompute
  62. 2026-10-13 19:48 UTCEG score recomputeFirst assessed: 8.1 HIGH
  63. 2026-10-13 19:48 UTCVendor advisory
  64. 2026-10-13 19:19 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-70062?
CVE-2026-70062 is a high-severity vulnerability; its CVE record was published on October 13, 2026. Double free in Windows Libarchive allows an unauthorized attacker to execute code over a network.
When was CVE-2026-70062 made public?
CVE-2026-70062 was made public on October 13, 2026: that is the date its CVE record's CNA, Microsoft Corporation, gives for when the vulnerability was made public. The CVE record itself was published on October 13, 2026. EchelonGraph's copy of the record carries a last-modified date of October 31, 2026; the record at its source may have been updated since.
Is CVE-2026-70062 actively exploited?
CVE-2026-70062 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (55th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70062?
CVE-2026-70062 has a CVSS base score of 8.1 (the CNA's own assessment, by microsoft; NVD's own analysis pending).
How do I remediate CVE-2026-70062?
A fix for CVE-2026-70062 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70062 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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