CVE-2026-98162

MEDIUMNVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-09-25. 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: 0.1%CVSS: 5.5Exploit: 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:

smb/server: fix tree connection leak in smb2_tree_connect()

See the procedure below:

smb2_tree_connect ksmbd_tree_conn_connect xa_store(&sess->tree_conns, tree_conn->id, tree_conn) ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS) ksmbd_share_tree_conn_inc(sc) ksmbd_iov_pin_rsp // fail status.ret = KSMBD_TREE_CONN_STATUS_NOMEM // do not disconnect tree_conn

Disconnect the new tree connection if ksmbd_iov_pin_rsp() fails.

CVSS v3
5.5
EG Score
5.5MEDIUMhigh confidence
EG Risk
29
EG Risk 29/100CISA 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
Severity55% × 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
0.1%
EPSS %ILE
below the 1st
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 25, 2026

Last Modified

October 2, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
No patch confirmed yet.
generic

smb/server: fix tree connection leak in smb2_tree_connect() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc
generic

smb/server: fix tree connection leak in smb2_tree_connect() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/39f2032096715daae5f6fd0f587ca7a474b019df

Vendor Advisories for CVE-2026-98162(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 24× 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. 2026-10-03 22:48 UTCEG score recompute
  2. 2026-10-03 22:48 UTCVendor advisory
  3. 2026-10-03 22:48 UTCGHSA enrichment
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-02 20:54 UTCEG score recompute▲ 5.50
  6. 2026-10-02 20:54 UTCVendor advisory
  7. 2026-10-02 20:54 UTCGHSA enrichment
  8. 2026-10-02 20:53 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  9. 2026-10-02 17:57 UTCEPSS rescore
  10. 2026-10-01 19:51 UTCEPSS rescore
  11. 2026-09-30 15:04 UTCEPSS rescore
  12. 2026-09-30 14:32 UTCEG score recompute
  13. 2026-09-30 14:32 UTCVendor advisory
  14. 2026-09-30 14:32 UTCGHSA enrichment
  15. 2026-09-28 17:19 UTCEG score recompute
  16. 2026-09-28 17:19 UTCVendor advisory
  17. 2026-09-28 17:19 UTCGHSA enrichment
  18. 2026-09-28 13:52 UTCEPSS rescore
  19. 2026-09-28 13:52 UTCEPSS rescore
  20. 2026-09-27 13:49 UTCEPSS rescore
  21. 2026-09-26 15:59 UTCEPSS rescore
  22. 2026-09-25 14:20 UTCNVD update
  23. 2026-09-25 13:19 UTCEG score recompute
  24. 2026-09-25 13:19 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-98162?
CVE-2026-98162 is a medium vulnerability published on September 25, 2026. In the Linux kernel, the following vulnerability has been resolved: smb/server: fix tree connection leak in smb2treeconnect() See the procedure below: smb2treeconnect ksmbdtreeconn_connect xastore(&sess->treeconns, treeconn->id, treeconn) ksmbdcounterinc(KSMBDCOUNTERTREE_CONNS)…
When was CVE-2026-98162 disclosed?
CVE-2026-98162 was first published on September 25, 2026, with the most recent update on October 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-98162 actively exploited?
CVE-2026-98162 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-98162?
CVE-2026-98162 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-98162?
No fix for CVE-2026-98162 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-2026-98162 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-98162

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