CVE-2026-72298

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. A secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()

qrtr_endpoint_post() validates an incoming packet with

if (!size || len != ALIGN(size, 4) + hdrlen) goto err;

where size comes from the wire. On 32-bit, size_t is 32 bits and ALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check passes and skb_put_data(skb, data + hdrlen, size) writes past the hdrlen-sized skb and oopses the kernel. 64-bit is unaffected.

This is the 32-bit residual of ad9d24c9429e2 ("net: qrtr: fix OOB Read in qrtr_endpoint_post"), which fixed only the 64-bit case.

Reject any size that cannot fit the buffer before the ALIGN.

CVSS v3
8.4
EG Score
8.4HIGHmedium confidence
EG Risk
42
EG Risk 42/100CISA 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
Severity84% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or 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
0.2%
EPSS %ILE
7th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or 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 (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (8)

Auto-updated Aug 17, 2026
Patch available.
generic

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d0597074e99731fdad5593e4f6d056a3866f2cab
generic

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b609f7f46916c6b05585ca82455077198a23770f
generic

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7f72c285f6d3bf63968a0344beee8ab1b370198b
generic

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/689b7267f8632b4661879dc323e26ebb60978afb
generic

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3665e644ea081c4624a1637023b0de3b29f4ae04
generic

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/242408b5b763c01288adf3113cbce84378a76e1a
generic

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/22100a8f73d4ae4f17697dae93d4e2e1d283a6ec
generic

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/20054869770c7df060c5ecee3e8bbf9029c47191

Vendor Advisories for CVE-2026-72298(3)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatkernel-rt-0:4.18.0-553.164.1.rt7.505.el8_102026-09-17redhat
redhatkernel-0:5.14.0-687.49.1.el9_82026-09-17redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)
  • every version up to 6.1.180-1: fixed in 6.1.180-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.96-1 (31 versions)
  • every version up to 6.12.100-1: fixed in 6.12.100-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (160 versions)
  • every version up to 7.1.5-1: fixed in 7.1.5-1
—

Data Freshness Timeline

(refreshed 28× in last 7d / 119× 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 207 total refreshes for this CVE.

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

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2026-72298?
CVE-2026-72298 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix 32-bit integer overflow in qrtrendpointpost() qrtrendpointpost() validates an incoming packet with if (!size || len != ALIGN(size, 4) + hdrlen) goto err; where size comes from the wire. On 32-bit, size_t is 32 bits…
When was CVE-2026-72298 disclosed?
CVE-2026-72298 was first published on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72298 actively exploited?
CVE-2026-72298 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72298?
CVE-2026-72298 has a CVSS base score of 8.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72298?
A fix for CVE-2026-72298 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72298 are linked in the Vendor Advisories panel on this page.

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