CVE-2026-62433

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-07-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

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

Parts of the DM_OP handling code assumes the caller has provided the required number of buffers for the given operation without any checking being done. As a result, certain operations might access stack rubble as structures are possibly uninitialized.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity73% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 28, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 28, 2026
No patch confirmed yet.
generic

XSA-506 - Xen Security Advisories

http://xenbits.xen.org/xsa/advisory-506.html
generic

XSA-506 - Xen Security Advisories

https://xenbits.xenproject.org/xsa/advisory-506.html

Vendor Advisories for CVE-2026-62433(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
xen4.14.2+25-gb6a8c4f72d-2 ... 4.20.3+127-gc42374a105-1 (46 versions)——
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 (7 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-g1badcf5035-24.20.3+127-gc42374a105-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 120× 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.

Showing the most recent 100 of 120 total refreshes for this CVE.

  1. 2026-08-26 02:26 UTCGHSA enrichment
  2. 2026-08-25 13:53 UTCEG score recompute
  3. 2026-08-25 13:53 UTCGHSA enrichment
  4. 2026-08-25 13:49 UTCEPSS rescore
  5. 2026-08-25 01:21 UTCEG score recompute
  6. 2026-08-25 01:21 UTCGHSA enrichment
  7. 2026-08-24 12:48 UTCEG score recompute
  8. 2026-08-24 12:48 UTCGHSA enrichment
  9. 2026-08-24 00:15 UTCGHSA enrichment
  10. 2026-08-23 11:42 UTCEG score recompute
  11. 2026-08-23 11:42 UTCGHSA enrichment
  12. 2026-08-23 00:19 UTCEPSS rescore
  13. 2026-08-22 23:09 UTCGHSA enrichment
  14. 2026-08-22 10:35 UTCEG score recompute
  15. 2026-08-22 10:35 UTCGHSA enrichment
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-21 22:02 UTCGHSA enrichment
  18. 2026-08-21 09:29 UTCEG score recompute
  19. 2026-08-21 09:29 UTCGHSA enrichment
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-20 20:56 UTCGHSA enrichment
  22. 2026-08-20 08:23 UTCGHSA enrichment
  23. 2026-08-19 19:50 UTCEG score recompute
  24. 2026-08-19 19:50 UTCGHSA enrichment
  25. 2026-08-19 17:04 UTCEPSS rescore
Show 75 more
  1. 2026-08-19 07:16 UTCGHSA enrichment
  2. 2026-08-18 18:39 UTCEG score recompute
  3. 2026-08-18 18:39 UTCGHSA enrichment
  4. 2026-08-18 13:48 UTCEPSS rescore
  5. 2026-08-18 03:46 UTCGHSA enrichment
  6. 2026-08-17 15:13 UTCEG score recompute
  7. 2026-08-17 15:13 UTCGHSA enrichment
  8. 2026-08-17 13:47 UTCEPSS rescore
  9. 2026-08-17 02:40 UTCEG score recompute
  10. 2026-08-17 02:40 UTCGHSA enrichment
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 14:07 UTCEG score recompute
  13. 2026-08-16 14:07 UTCGHSA enrichment
  14. 2026-08-16 01:34 UTCGHSA enrichment
  15. 2026-08-15 13:01 UTCEG score recompute
  16. 2026-08-15 13:01 UTCGHSA enrichment
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-15 00:28 UTCGHSA enrichment
  19. 2026-08-14 11:54 UTCGHSA enrichment
  20. 2026-08-13 23:22 UTCEG score recompute
  21. 2026-08-13 23:22 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 10:49 UTCGHSA enrichment
  24. 2026-08-12 22:16 UTCEG score recompute
  25. 2026-08-12 22:16 UTCGHSA enrichment
  26. 2026-08-12 13:51 UTCEPSS rescore
  27. 2026-08-12 09:43 UTCGHSA enrichment
  28. 2026-08-11 21:10 UTCEG score recompute
  29. 2026-08-11 21:10 UTCGHSA enrichment
  30. 2026-08-11 08:37 UTCEG score recompute
  31. 2026-08-11 08:37 UTCGHSA enrichment
  32. 2026-08-11 00:00 UTCEPSS rescore
  33. 2026-08-10 20:04 UTCGHSA enrichment
  34. 2026-08-10 07:30 UTCGHSA enrichment
  35. 2026-08-09 18:57 UTCEG score recompute
  36. 2026-08-09 18:57 UTCGHSA enrichment
  37. 2026-08-09 13:47 UTCEPSS rescore
  38. 2026-08-09 06:25 UTCGHSA enrichment
  39. 2026-08-08 17:52 UTCEG score recompute
  40. 2026-08-08 17:52 UTCGHSA enrichment
  41. 2026-08-08 16:37 UTCEPSS rescore
  42. 2026-08-08 05:19 UTCGHSA enrichment
  43. 2026-08-07 16:45 UTCEG score recompute
  44. 2026-08-07 16:45 UTCGHSA enrichment
  45. 2026-08-07 04:12 UTCGHSA enrichment
  46. 2026-08-06 15:39 UTCEG score recompute
  47. 2026-08-06 15:39 UTCGHSA enrichment
  48. 2026-08-06 13:47 UTCEPSS rescore
  49. 2026-08-06 03:06 UTCEG score recompute
  50. 2026-08-06 03:06 UTCGHSA enrichment
  51. 2026-08-05 19:17 UTCEPSS rescore
  52. 2026-08-05 19:17 UTCEPSS rescore
  53. 2026-08-05 14:33 UTCGHSA enrichment
  54. 2026-08-05 02:00 UTCEG score recompute
  55. 2026-08-05 02:00 UTCGHSA enrichment
  56. 2026-08-04 15:10 UTCEPSS rescore
  57. 2026-08-04 13:28 UTCEG score recompute
  58. 2026-08-04 13:28 UTCGHSA enrichment
  59. 2026-08-04 10:39 UTCEPSS rescore
  60. 2026-08-04 00:55 UTCGHSA enrichment
  61. 2026-08-03 12:22 UTCEG score recompute
  62. 2026-08-03 12:21 UTCGHSA enrichment
  63. 2026-08-03 10:36 UTCEPSS rescore
  64. 2026-08-02 23:48 UTCGHSA enrichment
  65. 2026-08-02 11:15 UTCEG score recompute
  66. 2026-08-02 11:15 UTCGHSA enrichment
  67. 2026-08-02 02:27 UTCEPSS rescore
  68. 2026-08-01 22:42 UTCGHSA enrichment
  69. 2026-08-01 10:09 UTCEG score recompute
  70. 2026-08-01 10:09 UTCGHSA enrichment
  71. 2026-08-01 04:16 UTCEPSS rescore
  72. 2026-07-31 21:36 UTCGHSA enrichment
  73. 2026-07-31 09:01 UTCGHSA enrichment
  74. 2026-07-30 20:26 UTCEG score recompute
  75. 2026-07-30 20:26 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-62433?
CVE-2026-62433 is a high vulnerability published on July 28, 2026. Parts of the DM_OP handling code assumes the caller has provided the required number of buffers for the given operation without any checking being done. As a result, certain operations might access stack rubble as structures are possibly uninitialized.
When was CVE-2026-62433 disclosed?
CVE-2026-62433 was first published in the National Vulnerability Database on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62433 actively exploited?
CVE-2026-62433 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 83.6% of all scored CVEs.
What is the CVSS score of CVE-2026-62433?
CVE-2026-62433 has a CVSS v3.1 base score of 7.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-62433?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62433, 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.

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