CVE-2026-45849

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 5 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: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()

ocelot_port_xmit_inj() calls ocelot_can_inject() and ocelot_port_inject_frame() without holding the injection group lock. Both functions contain lockdep_assert_held() for the injection lock, and the correct caller felix_port_deferred_xmit() properly acquires the lock using ocelot_lock_inj_grp() before calling these functions.

Add ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register injection path to fix the missing lock protection. The FDMA path is not affected as it uses its own locking mechanism.

CVSS v3
5.5
EG Score
5.5(medium)
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
4%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 25, 2026

Advisory Details (6)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cc1b179f778f98270bdbbb48d183b4b6427ae198
generic

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ac58d8832802ec89baa7539e13e6d58a88cce04
generic

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/63da961381e0d979459dede713001f8452364477
generic

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/51c32ae7fae14552d79f7139614b77c1bbd57a48
generic

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0b217a40156f497e09dd20d3f7baec40c785f386
generic

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/026f6513c5880c2c89e38ad66bbec2868f978605

Vendor Advisories for CVE-2026-45849(1)

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

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-09-14ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-09-14ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-09-14ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
linuxKernel @ 6.1.165—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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)6.1.170-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.18~rc7-1~exp1 (103 versions)6.18.14-1—

Weakness Classification(1)

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

All Vendor Advisories

(12)

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 10× in last 7d / 38× 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 195 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-45849?
CVE-2026-45849 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: add missing lock protection in ocelotportxmit_inj() ocelotportxmitinj() calls ocelotcan_inject() and ocelotportinject_frame() without holding the injection group lock. Both functions contain lockdepassertheld()…
When was CVE-2026-45849 disclosed?
CVE-2026-45849 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45849 actively exploited?
CVE-2026-45849 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 96.3% of all scored CVEs.
What is the CVSS score of CVE-2026-45849?
CVE-2026-45849 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-45849?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45849, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-45849

Explore →

Is Your Infrastructure Affected by CVE-2026-45849?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs