CVE-2026-90292

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-17. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

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

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

RDMA/siw: Fix use-after-free in siw_accept()

siw_accept() looks up the QP supplied by userspace. If that QP is already in RTS, the function jumps to error cleanup before associating the incoming CEP with it.

The cleanup tests whether qp->cep is non-NULL and assumes the current call installed the association. However, qp->cep can point to the CEP of an existing connection. The cleanup then drops a reference from the incoming cep, not qp->cep. Once the incoming endpoint loses its remaining references, this can free it before the subsequent cep->qp store, causing a use-after-free. It also clears the existing QP association.

Only release the association reference when qp->cep is the incoming CEP. This preserves an existing association and avoids accessing the freed endpoint.

CVSS v3
7.8
EG Score
7.8HIGHhigh confidence
EG Risk
40
EG Risk 40/100CISA 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

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

September 17, 2026

Last Modified

September 18, 2026

Advisory Details (8)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

RDMA/siw: Fix use-after-free in siw_accept() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/de603f01d9ccf823e575b013ffd86ebedca9a8c5
generic

RDMA/siw: Fix use-after-free in siw_accept() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d57db36e74cca4763e1c2c0c6eb9f84d19813879
generic

RDMA/siw: Fix use-after-free in siw_accept() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b9e7d3d9fdb2bfcfb25d93529fdf766536b37c78
generic

RDMA/siw: Fix use-after-free in siw_accept() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a9394971825933074032794a5feee5211509c774
generic

RDMA/siw: Fix use-after-free in siw_accept() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a89d120615e711ce8fce551fd291c2f387666735
generic

RDMA/siw: Fix use-after-free in siw_accept() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8f286a8094ee32c415f9ecd2c20765beb8a18c79
generic

RDMA/siw: Fix use-after-free in siw_accept() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/59de5502f32895ffe9c45530327ed997b90fdf06
generic

RDMA/siw: Fix use-after-free in siw_accept() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/561651d6a15588cee2040755f253faca2463415c

Vendor Advisories for CVE-2026-90292(2)

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

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (360 versions)
  • every version on: no fix on record
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1, 6.12.107-1~deb12u1
  • every version up to 6.12.111-1~deb12u1: fixed in 6.12.111-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (35 versions)
  • every version up to 6.12.111-1: fixed in 6.12.111-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (179 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
—

Data Freshness Timeline

(refreshed 38× in last 7d / 98× 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.

  1. 2026-10-05 01:04 UTCEG score recompute
  2. 2026-10-05 01:04 UTCVendor advisory
  3. 2026-10-05 01:04 UTCGHSA enrichment
  4. 2026-10-04 23:22 UTCEPSS rescore
  5. 2026-10-04 11:51 UTCVendor advisory
  6. 2026-10-04 11:51 UTCGHSA enrichment
  7. 2026-10-03 22:56 UTCEG score recompute
  8. 2026-10-03 22:56 UTCVendor advisory
  9. 2026-10-03 22:56 UTCGHSA enrichment
  10. 2026-10-03 10:00 UTCVendor advisory
  11. 2026-10-03 10:00 UTCGHSA enrichment
  12. 2026-10-02 20:45 UTCEG score recompute
  13. 2026-10-02 20:45 UTCVendor advisory
  14. 2026-10-02 20:45 UTCGHSA enrichment
  15. 2026-10-02 07:49 UTCEG score recompute
  16. 2026-10-02 07:49 UTCVendor advisory
  17. 2026-10-02 07:49 UTCGHSA enrichment
  18. 2026-10-01 19:51 UTCEPSS rescore
  19. 2026-10-01 18:52 UTCVendor advisory
  20. 2026-10-01 18:52 UTCGHSA enrichment
  21. 2026-10-01 05:49 UTCVendor advisory
  22. 2026-10-01 05:49 UTCGHSA enrichment
  23. 2026-09-30 16:53 UTCEG score recompute
  24. 2026-09-30 16:53 UTCVendor advisory
  25. 2026-09-30 16:53 UTCGHSA enrichment
Show 73 more
  1. 2026-09-30 15:04 UTCEPSS rescore
  2. 2026-09-30 02:49 UTCEG score recompute
  3. 2026-09-30 02:49 UTCVendor advisory
  4. 2026-09-30 02:49 UTCGHSA enrichment
  5. 2026-09-29 13:53 UTCVendor advisory
  6. 2026-09-29 13:53 UTCGHSA enrichment
  7. 2026-09-29 00:57 UTCEG score recompute
  8. 2026-09-29 00:57 UTCVendor advisory
  9. 2026-09-29 00:57 UTCGHSA enrichment
  10. 2026-09-28 13:52 UTCEPSS rescore
  11. 2026-09-28 13:52 UTCEPSS rescore
  12. 2026-09-28 12:02 UTCVendor advisory
  13. 2026-09-28 12:02 UTCGHSA enrichment
  14. 2026-09-27 23:05 UTCEG score recompute
  15. 2026-09-27 23:05 UTCVendor advisory
  16. 2026-09-27 23:05 UTCGHSA enrichment
  17. 2026-09-27 13:49 UTCEPSS rescore
  18. 2026-09-27 10:09 UTCVendor advisory
  19. 2026-09-27 10:09 UTCGHSA enrichment
  20. 2026-09-26 21:13 UTCEG score recompute
  21. 2026-09-26 21:13 UTCVendor advisory
  22. 2026-09-26 21:13 UTCGHSA enrichment
  23. 2026-09-26 15:59 UTCEPSS rescore
  24. 2026-09-26 08:18 UTCEG score recompute
  25. 2026-09-26 08:18 UTCVendor advisory
  26. 2026-09-26 08:17 UTCGHSA enrichment
  27. 2026-09-25 19:19 UTCVendor advisory
  28. 2026-09-25 19:19 UTCGHSA enrichment
  29. 2026-09-25 05:42 UTCVendor advisory
  30. 2026-09-25 05:42 UTCGHSA enrichment
  31. 2026-09-24 16:46 UTCEG score recompute
  32. 2026-09-24 16:46 UTCVendor advisory
  33. 2026-09-24 16:46 UTCGHSA enrichment
  34. 2026-09-24 14:04 UTCEPSS rescore
  35. 2026-09-24 03:51 UTCEG score recompute
  36. 2026-09-24 03:51 UTCVendor advisory
  37. 2026-09-24 03:51 UTCGHSA enrichment
  38. 2026-09-23 17:54 UTCEPSS rescore
  39. 2026-09-23 14:53 UTCVendor advisory
  40. 2026-09-23 14:53 UTCGHSA enrichment
  41. 2026-09-23 01:58 UTCEG score recompute
  42. 2026-09-23 01:58 UTCVendor advisory
  43. 2026-09-23 01:58 UTCGHSA enrichment
  44. 2026-09-22 16:01 UTCEPSS rescore
  45. 2026-09-22 13:02 UTCVendor advisory
  46. 2026-09-22 13:01 UTCGHSA enrichment
  47. 2026-09-22 00:06 UTCEG score recompute
  48. 2026-09-22 00:06 UTCVendor advisory
  49. 2026-09-22 00:05 UTCGHSA enrichment
  50. 2026-09-21 21:09 UTCEPSS rescore
  51. 2026-09-21 11:09 UTCVendor advisory
  52. 2026-09-21 11:09 UTCGHSA enrichment
  53. 2026-09-20 22:14 UTCEG score recompute
  54. 2026-09-20 22:14 UTCVendor advisory
  55. 2026-09-20 22:14 UTCGHSA enrichment
  56. 2026-09-20 20:16 UTCEPSS rescore
  57. 2026-09-20 09:18 UTCVendor advisory
  58. 2026-09-20 09:18 UTCGHSA enrichment
  59. 2026-09-19 20:21 UTCEG score recompute
  60. 2026-09-19 20:21 UTCVendor advisory
  61. 2026-09-19 20:21 UTCGHSA enrichment
  62. 2026-09-19 07:25 UTCEG score recompute
  63. 2026-09-19 07:25 UTCVendor advisory
  64. 2026-09-19 07:25 UTCGHSA enrichment
  65. 2026-09-18 19:28 UTCEPSS rescore
  66. 2026-09-18 18:30 UTCEG score recompute
  67. 2026-09-18 18:30 UTCGHSA enrichment
  68. 2026-09-18 18:03 UTCEG score recompute▲ 7.80
  69. 2026-09-18 18:03 UTCGHSA enrichment
  70. 2026-09-18 17:59 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  71. 2026-09-17 17:24 UTCNVD update
  72. 2026-09-17 16:33 UTCEG score recompute
  73. 2026-09-17 16:19 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-90292?
CVE-2026-90292 is a high vulnerability published on September 17, 2026. In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix use-after-free in siw_accept() siw_accept() looks up the QP supplied by userspace. If that QP is already in RTS, the function jumps to error cleanup before associating the incoming CEP with it. The cleanup tests…
When was CVE-2026-90292 disclosed?
CVE-2026-90292 was first published on September 17, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90292 actively exploited?
CVE-2026-90292 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-90292?
CVE-2026-90292 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-90292?
No fix for CVE-2026-90292 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-90292 are linked in the Vendor Advisories panel on this page.

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