CVE-2026-62433

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM 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: 0.3%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
7.3HIGHmedium confidence
EG Risk
48
EG Risk 48/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
15th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 28, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 28, 2026
Patch available.
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

(8 across 8 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.19.6-r0: fixed in 4.19.6-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.20.4-r0: fixed in 4.20.4-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.20.4-r0: fixed in 4.20.4-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.21.2-r0: fixed in 4.21.2-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
xen4.14.2+25-gb6a8c4f72d-2 ... 4.20.3+127-gc42374a105-1 (46 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
xen4.17.1+2-gb773c48e36-1 ... 4.17.5+72-g01140da4e8-1 (14 versions)
  • every version up to 4.17.7-0+deb12u1: fixed in 4.17.7-0+deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
xen4.20.0+68-g35cb38b222-1 ... 4.20.2+7-g1badcf5035-2 (6 versions)
  • every version up to 4.20.3+127-gc42374a105-0+deb13u1: fixed in 4.20.3+127-gc42374a105-0+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
xen4.20.0+68-g35cb38b222-1, 4.20.2+37-g61ff35323e-1, 4.20.2+7-g1badcf5035-1, 4.20.2+7-g1badcf5035-2
  • every version up to 4.20.3+127-gc42374a105-1: fixed in 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 11× in last 7d / 65× 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 227 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

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 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 0.3% probability of exploitation in the next 30 days (15th percentile of EPSS-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?
A fix for CVE-2026-62433 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-62433 are linked in the Vendor Advisories panel on this page.

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