CVE-2026-53177

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

bnxt_en: Fix NULL pointer dereference

PCIe errors detected by a Root Port or Downstream Port cause error recovery services to run on all subordinate devices regardless of administrative state.

The .error_detected() callback, bnxt_io_error_detected(), disables and synchronizes IRQs via bnxt_disable_int_sync(), which calls bnxt_cp_num_to_irq_num() to map completion rings to IRQs using bp->bnapi.

Since bp->bnapi is allocated on NIC open and freed on NIC close, PCIe error recovery on a closed NIC can dereference a NULL pointer.

Check if bp->bnapi is NULL before disabling and synchronizing IRQs.

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
2%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 6, 2026

Advisory Details (8)

Auto-updated Jul 8, 2026
No patch confirmed yet.
generic

bnxt_en: Fix NULL pointer dereference - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d930276f2cddd0b7294cac7a8fe7b877f6d9e08d
generic

bnxt_en: Fix NULL pointer dereference - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/964b1c3eb71afe58bb61c8b984164447e000ae8a
generic

bnxt_en: Fix NULL pointer dereference - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/59c5a3e69c7630a811565937e64be70b08436761
generic

bnxt_en: Fix NULL pointer dereference - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/580844a9683afe7974856dd5b7886447435b3474
generic

bnxt_en: Fix NULL pointer dereference - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3884976f87448e269908ae61bd5d62d54ce9c0c7
generic

bnxt_en: Fix NULL pointer dereference - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1a418ad0e5e525d1d117dd1601681f75455af320
generic

bnxt_en: Fix NULL pointer dereference - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1449177b87f768353909e930a99b902675119b2b
generic

bnxt_en: Fix NULL pointer dereference - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/08e57d014ea19f303d5d57a849beb846f37788b7

Vendor Advisories for CVE-2026-53177(2)

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

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (55 versions)5.10.262-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (145 versions)7.0.13-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 63× 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 187 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53177?
CVE-2026-53177 is a medium vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix NULL pointer dereference PCIe errors detected by a Root Port or Downstream Port cause error recovery services to run on all subordinate devices regardless of administrative state. The .errordetected() callback,…
When was CVE-2026-53177 disclosed?
CVE-2026-53177 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53177 actively exploited?
CVE-2026-53177 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 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-53177?
CVE-2026-53177 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53177?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53177, 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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