CVE-2026-43295

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

Score 5.5 from GitHub Security Advisory published 2026-05-08. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-28565 (ENISA EUVD) · GHSA-48jm-q77p-w8gv (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net()

When idtab allocation fails, net is not registered with rio_add_net() yet, so kfree(net) is sufficient to release the memory. Set mport->net to NULL to avoid dangling pointer.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
0.1%
EPSS %ILE
2nd
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 (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS. 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, and whom BOD 26-04 binds: 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 (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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.

The score's inputs: 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

May 8, 2026

Last Modified

May 14, 2026

Advisory Details (8)

Auto-updated Jun 15, 2026
Patch available.
Web page

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fecf292c6691970897396190855aa38826b7104e
Web page

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e5a732bfe29451e16abf9c6f07ce5948b22f3d59
Web page

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/87272e3e70ec4b666885bd520ff77463c11444ef
Web page

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/83e579c2f7f6b1706323d744833b26470049dcc2
Web page

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/78812c4fb7ed242d5961bf1337a49070d6487c94
Web page

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/666183dcdd9ad3b8156a1df7f204f728f720380f
Web page

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/649c2e853608cad0b0cba545555d168e67f094b3
Web page

rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/34a4f233df5eef5f1f113b2196142c0568b387f8

Patch Availability(25)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-08-23ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-23ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-23ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-23ubuntu
linuxKernel @ 5.10.252 (fixes >=4.6.0)—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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (53 versions)
  • every version up to 5.10.257-1: fixed in 5.10.257-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)
  • every version up to 6.1.170-1: fixed in 6.1.170-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)
  • every version up to 6.12.85-1: fixed in 6.12.85-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (117 versions)
  • every version up to 6.19.6-1: fixed in 6.19.6-1
—

All Vendor Advisories

(24)

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 7× in last 7d / 38× 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 100 of 249 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. None are among the latest 100 rows. The 149 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-06 16:38 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  2. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  3. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  4. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  5. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  7. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-10-30 16:55 UTCOSV refresh
  9. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  11. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-10-25 14:28 UTCEG score recompute
  15. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-23 01:52 UTCEG score recompute
  17. 2026-10-23 01:52 UTCGHSA enrichmentGHSA-48jm-q77p-w8gv · GitHub CVSS 5.5
  18. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  22. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-10-18 03:40 UTCEG score recompute
  24. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 5th percentile
Show 75 more
  1. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  5. 2026-10-12 16:06 UTCEG score recompute
  6. 2026-10-11 19:48 UTCEG score recompute
  7. 2026-10-11 17:02 UTCEG score recompute
  8. 2026-10-11 14:28 UTCEG score recompute
  9. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  12. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  14. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  17. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  20. 2026-09-30 08:28 UTCOSV refresh
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  22. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  23. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  25. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  26. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  27. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  28. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  29. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  30. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  31. 2026-09-11 14:53 UTCOSV refresh
  32. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  33. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  34. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  35. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  36. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  37. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  38. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  39. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  40. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  41. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  42. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  45. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  46. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  47. 2026-08-23 19:19 UTCEG score recompute
  48. 2026-08-23 19:19 UTCVendor advisory
  49. 2026-08-23 19:18 UTCGHSA enrichmentGHSA-48jm-q77p-w8gv · GitHub CVSS 5.5
  50. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  52. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  53. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  55. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-08-17 11:57 UTCEG score recompute
  57. 2026-08-17 11:57 UTCVendor advisory
  58. 2026-08-17 11:57 UTCGHSA enrichmentGHSA-48jm-q77p-w8gv · GitHub CVSS 5.5
  59. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-08-16 04:38 UTCEG score recompute
  61. 2026-08-16 04:38 UTCVendor advisory
  62. 2026-08-16 04:38 UTCGHSA enrichmentGHSA-48jm-q77p-w8gv · GitHub CVSS 5.5
  63. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  64. 2026-08-15 02:03 UTCEG score recompute
  65. 2026-08-15 02:03 UTCVendor advisory
  66. 2026-08-15 02:03 UTCGHSA enrichmentGHSA-48jm-q77p-w8gv · GitHub CVSS 5.5
  67. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  68. 2026-08-14 03:14 UTCEG score recompute
  69. 2026-08-14 03:14 UTCVendor advisory
  70. 2026-08-14 03:14 UTCGHSA enrichmentGHSA-48jm-q77p-w8gv · GitHub CVSS 5.5
  71. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  72. 2026-08-12 22:56 UTCEG score recompute
  73. 2026-08-12 22:56 UTCVendor advisory
  74. 2026-08-12 22:56 UTCGHSA enrichmentGHSA-48jm-q77p-w8gv · GitHub CVSS 5.5
  75. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.1% · 2nd percentile

Frequently asked(5)

What is CVE-2026-43295?
CVE-2026-43295 is a medium-severity vulnerability; its CVE record was published on May 8, 2026. In the Linux kernel, the following vulnerability has been resolved: rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() When idtab allocation fails, net is not registered with rio_add_net() yet, so kfree(net) is sufficient to release the memory. Set mport->net to NULL to avoid…
When was the CVE record for CVE-2026-43295 published?
The CVE record for CVE-2026-43295 was published on May 8, 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 May 14, 2026; the record at its source may have been updated since.
Is CVE-2026-43295 actively exploited?
CVE-2026-43295 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-43295?
CVE-2026-43295 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-43295?
A fix for CVE-2026-43295 is available: update to the fixed version the vendor names in its advisory.

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