CVE-2026-63873

UNRATEDCVSS · not yet scoredTrending — 5 sources updated this week

Also known asEUVD-2026-45558 (ENISA EUVD) · GHSA-fcmf-5wqg-hrw5 (GitHub Security Advisories)Source: ENISA EUVD

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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()

aie2_populate_range() jumps back to the again label without calling mmput(mm), leaking a reference to the mm_struct.

Add the missing mmput() before jumping to again.

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0.2%
EPSS %ILE
10th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). 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
No SSVC decision: EchelonGraph has not assessed this CVECISA 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 BOD 26-04 block below.

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's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

July 19, 2026

Last Modified

July 27, 2026

References (3)

Vendor Advisories for CVE-2026-63873(1)

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

Patch Availability(12)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-31.31~24.04.1) @ noble2026-10-29ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-10-29ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-10-29ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1018.18~24.04.1) @ noble2026-10-29ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1019.19) @ resolute2026-10-29ubuntu
ubuntulinux-tools-ibm-7.0 (7.0.0-1013.13) @ resolute2026-10-29ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2018.18) @ resolute2026-10-29ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1018.18) @ resolute2026-10-29ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1011.11) @ resolute2026-10-29ubuntu
ubuntulinux-tools-azure-edge (7.0.0-1014.14~24.04.1) @ noble2026-10-29ubuntu
ubuntulinux-tools-oracle-edge (7.0.0-1011.11~24.04.1) @ noble2026-10-29ubuntu
linuxKernel @ 6.18.36 (fixes >=6.16.0)—osv

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)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (146 versions)
  • every version up to 7.0.13-1: fixed in 7.0.13-1
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All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 42× 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 99 of 229 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 130 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 17:11 UTCEG score recompute
  2. 2026-10-29 17:11 UTCVendor advisory
  3. 2026-10-29 17:11 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  4. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  5. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  6. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  7. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  8. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  9. 2026-10-25 14:13 UTCEG score recompute
  10. 2026-10-25 00:55 UTCOSV refresh
  11. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  13. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  14. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  18. 2026-10-18 03:23 UTCEG score recompute
  19. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  22. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-10-12 15:48 UTCEG score recompute
Show 74 more
  1. 2026-10-11 19:33 UTCEG score recompute
  2. 2026-10-11 16:48 UTCEG score recompute
  3. 2026-10-11 14:09 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  7. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  13. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  14. 2026-10-01 09:06 UTCEG score recompute
  15. 2026-10-01 09:06 UTCVendor advisory
  16. 2026-10-01 09:06 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  17. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  18. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  19. 2026-09-28 07:35 UTCVendor advisory
  20. 2026-09-28 07:35 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  21. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  22. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  23. 2026-09-23 02:11 UTCVendor advisory
  24. 2026-09-23 02:11 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  25. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  26. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  27. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  28. 2026-09-16 13:09 UTCVendor advisory
  29. 2026-09-16 13:09 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  30. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  31. 2026-09-11 19:41 UTCVendor advisory
  32. 2026-09-11 19:41 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  33. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  34. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  35. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  36. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  37. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  38. 2026-09-05 20:12 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  39. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  40. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  41. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  42. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  43. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  44. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  45. 2026-08-30 02:59 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  46. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  47. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  48. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  49. 2026-08-26 23:34 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  50. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  51. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  52. 2026-08-23 23:03 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  53. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  54. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  55. 2026-08-20 22:28 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  56. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  57. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  58. 2026-08-17 21:58 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  59. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  60. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  61. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  62. 2026-08-14 21:28 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  63. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  64. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  65. 2026-08-11 20:58 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  66. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  67. 2026-08-09 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  68. 2026-08-08 20:28 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  69. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  70. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  71. 2026-08-05 19:57 UTCGHSA enrichmentGHSA-fcmf-5wqg-hrw5
  72. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  73. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  74. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.2% · 5th percentile

Related CVEs(same vendor)

Frequently asked(4)

What is CVE-2026-63873?
CVE-2026-63873 is a vulnerability whose severity is not yet rated; its CVE record was published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix mmstruct reference leak in aie2populate_range() aie2populaterange() jumps back to the again label without calling mmput(mm), leaking a reference to the mm_struct. Add the missing mmput() before jumping to again.
When was the CVE record for CVE-2026-63873 published?
The CVE record for CVE-2026-63873 was published on July 19, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 27, 2026; the record at its source may have been updated since.
Is CVE-2026-63873 actively exploited?
CVE-2026-63873 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (10th percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-63873?
A fix for CVE-2026-63873 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-63873 are linked in the Vendor Advisories panel on this page.

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