CVE-2026-23242

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-03-18. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 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:

RDMA/siw: Fix potential NULL pointer dereference in header processing

If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(), qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data() dereferences qp->rx_fpdu->more_ddp_segs without checking, which may lead to a NULL pointer deref. Only check more_ddp_segs when rx_fpdu is present.

KASAN splat: [ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
36.3%
KEV
Not listed

Published

March 18, 2026

Last Modified

July 14, 2026

Advisory Details (8)

Auto-updated Jun 10, 2026
No patch confirmed yet.
generic

RDMA/siw: Fix potential NULL pointer dereference in header processing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d
generic

RDMA/siw: Fix potential NULL pointer dereference in header processing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755
generic

RDMA/siw: Fix potential NULL pointer dereference in header processing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0
generic

RDMA/siw: Fix potential NULL pointer dereference in header processing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e
generic

RDMA/siw: Fix potential NULL pointer dereference in header processing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355
generic

RDMA/siw: Fix potential NULL pointer dereference in header processing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274
generic

RDMA/siw: Fix potential NULL pointer dereference in header processing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817
generic

RDMA/siw: Fix potential NULL pointer dereference in header processing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142

Vendor Advisories for CVE-2026-23242(2)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 5.10.252—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.

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-23242?
CVE-2026-23242 is a high vulnerability published on March 18, 2026. In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix potential NULL pointer dereference in header processing If siwgethdr() returns -EINVAL before setrxfpdu_context(), qp->rxfpdu can be NULL. The error path in siwtcprxdata() dereferences qp->rxfpdu->moreddp_segs without…
When was CVE-2026-23242 disclosed?
CVE-2026-23242 was first published in the National Vulnerability Database on March 18, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23242 actively exploited?
CVE-2026-23242 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-23242?
CVE-2026-23242 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-23242?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23242, 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

Explore the affected products and dependency analysis for CVE-2026-23242

Explore →

Is Your Infrastructure Affected by CVE-2026-23242?

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

Start Free Scan →Browse All CVEs