CVE-2026-46151

MEDIUMCVSS · not yet scored5.5
EchelonGraph scoreLOW confidence

Score 5.5 from GitHub Security Advisory published 2026-05-28.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa
Trending — 4 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: None knownExposed: 0

A fix is available — apply it.

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

usb: usblp: fix heap leak in IEEE 1284 device ID via short response

usblp_ctrl_msg() collapses the usb_control_msg() return value to 0/-errno, discarding the actual number of bytes transferred. A broken printer can complete the GET_DEVICE_ID control transfer short and the driver has no way to know.

usblp_cache_device_id_string() reads the 2-byte big-endian length prefix from the response and trusts it (clamped only to the buffer bounds). The buffer is kmalloc(1024) at probe time. A device that sends exactly two bytes (e.g. 0x03 0xFF, claiming a 1023-byte ID) leaves device_id_string[2..1022] holding stale kmalloc heap.

That stale data is then exposed:

  • via the ieee1284_id sysfs attribute (sprintf("%s", buf+2), truncated
at the first NUL in the stale heap), and
  • via the IOCNR_GET_DEVICE_ID ioctl, which copy_to_user()s the full
claimed length regardless of NULs, up to 1021 bytes of uninitialized heap, with the leak size chosen by the device.

Fix this up by just zapping the buffer with zeros before each request sent to the device.

CVSS v3
—
EG Score
5.5(low)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 14, 2026

Advisory Details (8)

Auto-updated Jun 13, 2026
No patch confirmed yet.
generic

usb: usblp: fix heap leak in IEEE 1284 device ID via short response - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8247f52d822180e94ccbfdab91613af386a4e34d
generic

usb: usblp: fix heap leak in IEEE 1284 device ID via short response - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7a400c6fe3617e31e690e3f7ca37bb335e0498f3
generic

usb: usblp: fix heap leak in IEEE 1284 device ID via short response - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e29c32a27218f2dcd4a4e9b0b3c5e7728640698
generic

usb: usblp: fix heap leak in IEEE 1284 device ID via short response - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6d8142141c942c0d8e79343cffda9c44bb1f3f4f
generic

usb: usblp: fix heap leak in IEEE 1284 device ID via short response - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/612640abbd9e0947fe8f37aaf0cf324265d7caa4
generic

usb: usblp: fix heap leak in IEEE 1284 device ID via short response - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/522d17e93a85575256894212d10e5a1fa6f36529
generic

usb: usblp: fix heap leak in IEEE 1284 device ID via short response - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4650cce898fcd0bb8c33e529984687a8caed10c3
generic

usb: usblp: fix heap leak in IEEE 1284 device ID via short response - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4220d4dd062ea3d3eb056a6cbe0b568e740d20b1

Vendor Advisories for CVE-2026-46151(2)

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

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-07-27ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-07-27ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-07-27ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-07-27ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-07-27ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-07-27ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-07-27ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-07-27ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-07-27ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-07-27ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-07-27ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-07-27ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-07-27ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-07-27ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-07-27ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-07-27ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-07-27ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-07-27ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-07-27ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-07-27ubuntu

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(22)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 53× 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 125 total refreshes for this CVE.

  1. 2026-07-27 14:13 UTCEPSS rescore
  2. 2026-07-27 09:48 UTCEG score recompute
  3. 2026-07-27 09:48 UTCVendor advisory
  4. 2026-07-27 09:47 UTCGHSA enrichment
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 14:54 UTCEPSS rescore
  7. 2026-07-25 14:18 UTCEPSS rescore
  8. 2026-07-24 14:17 UTCEPSS rescore
  9. 2026-07-23 14:18 UTCEPSS rescore
  10. 2026-07-23 03:16 UTCEG score recompute
  11. 2026-07-22 14:08 UTCEPSS rescore
  12. 2026-07-21 15:24 UTCEPSS rescore
  13. 2026-07-20 17:08 UTCEPSS rescore
  14. 2026-07-19 14:31 UTCEPSS rescore
  15. 2026-07-19 02:29 UTCEPSS rescore
  16. 2026-07-18 10:04 UTCEPSS rescore
  17. 2026-07-16 17:03 UTCEPSS rescore
  18. 2026-07-16 10:24 UTCVendor advisory
  19. 2026-07-16 10:24 UTCGHSA enrichment
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 02:00 UTCEPSS rescore
  22. 2026-07-13 22:30 UTCEPSS rescore
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-12 05:46 UTCEPSS rescore
  25. 2026-07-11 21:16 UTCVendor advisory
Show 75 more
  1. 2026-07-11 21:16 UTCGHSA enrichment
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 18:32 UTCVendor advisory
  5. 2026-07-08 18:32 UTCGHSA enrichment
  6. 2026-07-08 15:16 UTCEPSS rescore
  7. 2026-07-07 13:46 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-02 14:16 UTCVendor advisory
  13. 2026-07-02 14:16 UTCGHSA enrichment
  14. 2026-07-01 15:07 UTCEPSS rescore
  15. 2026-07-01 03:10 UTCVendor advisory
  16. 2026-07-01 03:10 UTCGHSA enrichment
  17. 2026-06-30 23:22 UTCEPSS rescore
  18. 2026-06-29 20:39 UTCVendor advisory
  19. 2026-06-29 20:39 UTCGHSA enrichment
  20. 2026-06-29 14:06 UTCEPSS rescore
  21. 2026-06-29 14:06 UTCEPSS rescore
  22. 2026-06-28 21:11 UTCVendor advisory
  23. 2026-06-28 21:11 UTCGHSA enrichment
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
  26. 2026-06-28 04:56 UTCEPSS rescore
  27. 2026-06-27 21:43 UTCVendor advisory
  28. 2026-06-27 21:43 UTCGHSA enrichment
  29. 2026-06-27 03:08 UTCEPSS rescore
  30. 2026-06-26 22:15 UTCVendor advisory
  31. 2026-06-26 22:15 UTCGHSA enrichment
  32. 2026-06-25 22:47 UTCVendor advisory
  33. 2026-06-25 22:47 UTCGHSA enrichment
  34. 2026-06-25 13:49 UTCEPSS rescore
  35. 2026-06-24 22:49 UTCVendor advisory
  36. 2026-06-24 22:49 UTCGHSA enrichment
  37. 2026-06-24 14:05 UTCEPSS rescore
  38. 2026-06-23 21:33 UTCEPSS rescore
  39. 2026-06-23 21:33 UTCEPSS rescore
  40. 2026-06-22 14:25 UTCEPSS rescore
  41. 2026-06-22 14:25 UTCEPSS rescore
  42. 2026-06-21 14:56 UTCEPSS rescore
  43. 2026-06-21 14:56 UTCEPSS rescore
  44. 2026-06-21 01:59 UTCEPSS rescore
  45. 2026-06-21 01:59 UTCEPSS rescore
  46. 2026-06-19 19:26 UTCEPSS rescore
  47. 2026-06-19 19:26 UTCEPSS rescore
  48. 2026-06-18 17:52 UTCEPSS rescore
  49. 2026-06-18 17:52 UTCEPSS rescore
  50. 2026-06-17 17:53 UTCEPSS rescore
  51. 2026-06-17 15:13 UTCGHSA enrichment
  52. 2026-06-16 17:52 UTCEPSS rescore
  53. 2026-06-16 15:44 UTCVendor advisory
  54. 2026-06-16 15:44 UTCGHSA enrichment
  55. 2026-06-15 17:49 UTCEPSS rescore
  56. 2026-06-15 13:02 UTCVendor advisory
  57. 2026-06-15 13:02 UTCGHSA enrichment
  58. 2026-06-14 23:28 UTCMITRE cvelistV5
  59. 2026-06-14 10:00 UTCVendor advisory
  60. 2026-06-14 10:00 UTCGHSA enrichment
  61. 2026-06-13 23:00 UTCEPSS rescore
  62. 2026-06-13 10:31 UTCVendor advisory
  63. 2026-06-13 10:31 UTCGHSA enrichment
  64. 2026-06-12 23:12 UTCEPSS rescore
  65. 2026-06-12 23:12 UTCEPSS rescore
  66. 2026-06-12 10:49 UTCEG score recompute▲ 5.50
  67. 2026-06-12 10:49 UTCVendor advisory
  68. 2026-06-12 10:49 UTCGHSA enrichment
  69. 2026-06-11 14:00 UTCEPSS rescore
  70. 2026-06-10 22:18 UTCEPSS rescore
  71. 2026-06-10 13:22 UTCEPSS rescore
  72. 2026-06-10 13:22 UTCEPSS rescore
  73. 2026-06-09 21:17 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  74. 2026-06-09 14:25 UTCGHSA enrichment
  75. 2026-06-08 14:17 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2026-46151?
CVE-2026-46151 is a medium vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: usb: usblp: fix heap leak in IEEE 1284 device ID via short response usblpctrlmsg() collapses the usbcontrolmsg() return value to 0/-errno, discarding the actual number of bytes transferred. A broken printer can complete the…
When was CVE-2026-46151 disclosed?
CVE-2026-46151 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46151 actively exploited?
CVE-2026-46151 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 97.6% of all scored CVEs.
How do I remediate CVE-2026-46151?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46151, 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.

Dependency Blast Radius

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