CVE-2026-79602

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG() in Xen.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 10, 2026

Advisory Details (1)

Auto-updated Sep 10, 2026
No patch confirmed yet.
generic

XSA-510 - Xen Security Advisories

https://xenbits.xenproject.org/xsa/advisory-510.html

Vendor Advisories for CVE-2026-79602(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
xen4.17.1+2-gb773c48e36-1 ... 4.20.3+127-gc42374a105-1 (25 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
xen4.20.0+68-g35cb38b222-1 ... 4.20.3+127-gc42374a105-1 (8 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
xen4.20.0+68-g35cb38b222-1, 4.20.2+37-g61ff35323e-1, 4.20.2+7-g1badcf5035-1, 4.20.2+7-g1badcf5035-2, 4.20.3+127-gc42374a105-1——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 68× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-09-25 02:59 UTCGHSA enrichment
  2. 2026-09-24 15:31 UTCEG score recompute
  3. 2026-09-24 15:31 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 04:05 UTCEG score recompute
  6. 2026-09-24 04:05 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 16:41 UTCGHSA enrichment
  9. 2026-09-23 05:16 UTCGHSA enrichment
  10. 2026-09-22 17:52 UTCEG score recompute
  11. 2026-09-22 17:52 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 06:14 UTCEG score recompute
  14. 2026-09-22 06:14 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 18:51 UTCGHSA enrichment
  17. 2026-09-21 07:27 UTCEG score recompute
  18. 2026-09-21 07:27 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 19:31 UTCGHSA enrichment
  21. 2026-09-20 08:07 UTCGHSA enrichment
  22. 2026-09-19 20:12 UTCEG score recompute
  23. 2026-09-19 20:12 UTCGHSA enrichment
  24. 2026-09-19 08:48 UTCGHSA enrichment
  25. 2026-09-18 21:21 UTCEG score recompute
Show 43 more
  1. 2026-09-18 21:21 UTCGHSA enrichment
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 09:44 UTCGHSA enrichment
  4. 2026-09-17 22:21 UTCEG score recompute
  5. 2026-09-17 22:20 UTCGHSA enrichment
  6. 2026-09-17 10:56 UTCGHSA enrichment
  7. 2026-09-16 23:32 UTCEG score recompute
  8. 2026-09-16 23:32 UTCGHSA enrichment
  9. 2026-09-16 14:08 UTCEPSS rescore
  10. 2026-09-16 12:09 UTCEG score recompute
  11. 2026-09-16 12:09 UTCGHSA enrichment
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-16 00:45 UTCGHSA enrichment
  14. 2026-09-15 13:21 UTCEG score recompute
  15. 2026-09-15 13:21 UTCGHSA enrichment
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-15 01:57 UTCGHSA enrichment
  19. 2026-09-14 14:33 UTCGHSA enrichment
  20. 2026-09-14 03:07 UTCEG score recompute
  21. 2026-09-14 03:07 UTCGHSA enrichment
  22. 2026-09-13 15:43 UTCGHSA enrichment
  23. 2026-09-13 04:20 UTCGHSA enrichment
  24. 2026-09-12 16:56 UTCEG score recompute
  25. 2026-09-12 16:56 UTCGHSA enrichment
  26. 2026-09-12 05:32 UTCGHSA enrichment
  27. 2026-09-11 18:08 UTCEG score recompute
  28. 2026-09-11 18:08 UTCGHSA enrichment
  29. 2026-09-11 14:53 UTCEPSS rescore
  30. 2026-09-11 14:53 UTCEPSS rescore
  31. 2026-09-11 06:45 UTCEG score recompute
  32. 2026-09-11 06:45 UTCGHSA enrichment
  33. 2026-09-10 19:21 UTCGHSA enrichment
  34. 2026-09-10 18:25 UTCEG score recompute▲ 8.80
  35. 2026-09-10 18:25 UTCGHSA enrichment
  36. 2026-09-10 18:24 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  37. 2026-09-08 19:50 UTCGHSA enrichment
  38. 2026-09-08 18:29 UTCNVD update
  39. 2026-09-08 18:14 UTCGHSA enrichment
  40. 2026-09-08 17:25 UTCMITRE cvelistV5
  41. 2026-09-08 13:25 UTCNVD update
  42. 2026-09-08 12:27 UTCEG score recompute
  43. 2026-09-08 12:24 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-79602?
CVE-2026-79602 is a high vulnerability published on September 8, 2026. A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG() in Xen.
When was CVE-2026-79602 disclosed?
CVE-2026-79602 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79602 actively exploited?
CVE-2026-79602 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.1% of all scored CVEs.
What is the CVSS score of CVE-2026-79602?
CVE-2026-79602 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-79602?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79602, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-79602

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