CVE-2026-98160

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:

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init()

padapter->HalData is allocated via vzalloc(), but incorrectly freed using kfree() in the rtw_sdio_if1_init() error path. Using kfree() to release this vmalloc-backed buffer can lead to memory corruption.

Use rtw_hal_data_deinit() to pair the free correctly and free HalData with vfree().

The bug was first flagged by an experimental static analysis tool we are developing for kernel memory-management bugs. Manual inspection confirms that the issue is still present in current mainline.

An x86_64 allyesconfig build showed no new warnings. As we do not have suitable RTL8723BS SDIO hardware to test with, no runtime testing was able to be performed.

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
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 (8)

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

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ff6d1ba247b5c62bdb678f1069abc86ad88a1402
generic

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d6158333d630a1b21d8914feaf77a6f5deb185d9
generic

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/911190f0b9511c3c81f2f2484414c1ae26f636b3
generic

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/737c928ff5092d7e55128a232c231248fc993777
generic

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c017ab2b0e1b60b5be94636c94720347213d78b
generic

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4520d673d49dabfd42c008a33889251025f7d6d5
generic

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/423574feaed192063ef0cd0813fb85425f39e539
generic

staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/264676418b726baca7be49171e306b6aa05cceb0

Vendor Advisories for CVE-2026-98160(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
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 27× 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. 2026-10-04 23:23 UTCEPSS rescore
  2. 2026-10-04 22:09 UTCVendor advisory
  3. 2026-10-04 22:09 UTCGHSA enrichment
  4. 2026-10-03 21:25 UTCEG score recompute
  5. 2026-10-03 21:25 UTCVendor advisory
  6. 2026-10-03 21:25 UTCGHSA enrichment
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 20:41 UTCEG score recompute▲ 5.50
  9. 2026-10-02 20:41 UTCVendor advisory
  10. 2026-10-02 20:41 UTCGHSA enrichment
  11. 2026-10-02 20:40 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  12. 2026-10-02 17:57 UTCEPSS rescore
  13. 2026-10-01 19:51 UTCEPSS rescore
  14. 2026-09-30 15:04 UTCEPSS rescore
  15. 2026-09-30 14:32 UTCEG score recompute
  16. 2026-09-30 14:32 UTCVendor advisory
  17. 2026-09-30 14:32 UTCGHSA enrichment
  18. 2026-09-28 19:37 UTCEG score recompute
  19. 2026-09-28 19:37 UTCVendor advisory
  20. 2026-09-28 19:37 UTCGHSA enrichment
  21. 2026-09-28 13:52 UTCEPSS rescore
  22. 2026-09-28 13:52 UTCEPSS rescore
  23. 2026-09-27 13:49 UTCEPSS rescore
  24. 2026-09-26 15:59 UTCEPSS rescore
  25. 2026-09-25 14:20 UTCNVD update
Show 2 more
  1. 2026-09-25 13:19 UTCEG score recompute
  2. 2026-09-25 13:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-98160?
CVE-2026-98160 is a medium vulnerability published on September 25, 2026. In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix mismatched free of HalData in rtwsdioif1_init() padapter->HalData is allocated via vzalloc(), but incorrectly freed using kfree() in the rtwsdioif1_init() error path. Using kfree() to release this…
When was CVE-2026-98160 disclosed?
CVE-2026-98160 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-2026-98160 actively exploited?
CVE-2026-98160 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-98160?
CVE-2026-98160 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-98160?
No fix for CVE-2026-98160 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-2026-98160 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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