CVE-2026-7374

CRITICALPre-NVD 9.99.9
EchelonGraph scoreMEDIUM confidence

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

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-26. A secondary CVSS source baseline 9.9; 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
9.9EG
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: 9.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host's container runtime (CRI-O) socket, an attacker can hijack virt-handler's privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster.

CVSS v3
9.9
EG Score
9.9CRITICALmedium confidence
EG Risk
45
EG Risk 45/100

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)
Severity99% × 45%
Impact severity (EG Severity): CVSS 9.9 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
57th
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 (9.9): severity, escalated by confirmed exploitation. This CVE's 9.9 is its impact severity (EG Severity), not escalated.

EG Severity
9.9 CRITICALCVSS-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 2026-10-22). 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: 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.

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

May 26, 2026

Last Modified

September 10, 2026

Advisory Details (12)

Auto-updated Oct 22, 2026
Patch available. Sources: redhat.
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20975
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20890
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20886
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20866
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20825
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20782
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20767
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20763
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20736
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:20720
Red Hat

2463728 – (CVE-2026-7374) CVE-2026-7374 kubevirt: KubeVirt virt-handler: Privilege escalation and node compromise via symlink following vulnerability

https://bugzilla.redhat.com/show_bug.cgi?id=2463728
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-7374

Patch Availability(10)

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
kubevirt.io/kubevirt—
  • 1.8.0-alpha.0 up to 1.8.3: fixed in 1.8.3
  • 1.7.0-alpha.0 up to 1.7.4: fixed in 1.7.4
  • every version up to 1.6.6: fixed in 1.6.6
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 55× 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 96 of 584 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. 4 repeat rows among the latest 100 are merged into the row they repeat. The 488 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 01:35 UTCEG score recompute
  2. 2026-10-23 01:35 UTCVendor advisory
  3. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.8% · 57th percentile
  4. 2026-10-22 00:23 UTCEG score recompute
  5. 2026-10-22 00:23 UTCVendor advisory
  6. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.8% · 57th percentile
  7. 2026-10-20 23:10 UTCEG score recompute
  8. 2026-10-20 23:10 UTCVendor advisory
  9. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  10. 2026-10-19 22:00 UTCEG score recompute
  11. 2026-10-19 22:00 UTCVendor advisory
  12. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  13. 2026-10-18 20:49 UTCEG score recompute
  14. 2026-10-18 20:49 UTCVendor advisory
  15. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  16. 2026-10-18 03:14 UTCEG score recompute
  17. 2026-10-17 19:38 UTCEG score recompute
  18. 2026-10-17 19:38 UTCVendor advisory
  19. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  20. 2026-10-16 18:27 UTCEG score recompute
  21. 2026-10-16 18:27 UTCVendor advisory
  22. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  23. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  24. 2026-10-15 14:57 UTCEG score recompute
  25. 2026-10-15 14:57 UTCVendor advisory
Show 71 more
  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  2. 2026-10-14 09:24 UTCEG score recompute
  3. 2026-10-14 09:24 UTCVendor advisory
  4. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  5. 2026-10-13 06:54 UTCEG score recompute
  6. 2026-10-13 06:54 UTCVendor advisory
  7. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  8. 2026-10-12 15:40 UTCEG score recompute
  9. 2026-10-12 05:42 UTCVendor advisory
  10. 2026-10-11 19:26 UTCEG score recompute
  11. 2026-10-11 16:42 UTCEG score recompute
  12. 2026-10-11 14:01 UTCEG score recompute
  13. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  14. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  16. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  19. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  20. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  21. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  22. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  23. 2026-09-29 20:02 UTCOSV refresh
  24. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  25. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  26. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  27. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  28. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  29. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  30. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  31. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  32. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  33. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  34. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  35. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  36. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  37. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  38. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  39. 2026-09-10 13:38 UTCEG score recompute
  40. 2026-09-10 13:38 UTCVendor advisory
  41. 2026-09-10 12:26 UTCEG score recompute
  42. 2026-09-10 12:26 UTCVendor advisory
  43. 2026-09-09 15:32 UTCEG score recompute
  44. 2026-09-09 15:32 UTCVendor advisory
  45. 2026-09-09 14:21 UTCEG score recompute
  46. 2026-09-09 14:21 UTCVendor advisory
  47. 2026-09-09 13:41 UTCEG score recompute
  48. 2026-09-09 13:41 UTCVendor advisory
  49. 2026-09-09 12:38 UTCEG score recompute
  50. 2026-09-09 12:38 UTCVendor advisory
  51. 2026-09-08 23:02 UTCEG score recompute
  52. 2026-09-08 23:02 UTCVendor advisory
  53. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  54. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  55. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  56. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  57. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  58. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  59. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  60. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  61. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  62. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  63. 2026-08-27 13:01 UTCEG score recompute
  64. 2026-08-27 13:01 UTCVendor advisory
  65. 2026-08-26 17:45 UTCEG score recompute
  66. 2026-08-26 17:45 UTCVendor advisory
  67. 2026-08-26 16:05 UTCEG score recompute
  68. 2026-08-26 16:05 UTCVendor advisory
  69. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  70. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  71. 2026-08-25 12:19 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-7374?
CVE-2026-7374 is a critical-severity vulnerability; its CVE record was published on May 26, 2026. A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to…
When was CVE-2026-7374 made public?
CVE-2026-7374 was made public on May 26, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on May 26, 2026. EchelonGraph's copy of the record carries a last-modified date of September 10, 2026; the record at its source may have been updated since.
Is CVE-2026-7374 actively exploited?
CVE-2026-7374 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (57th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-7374?
CVE-2026-7374 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-7374?
A fix for CVE-2026-7374 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-7374 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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