CVE-2026-98349

Out-of-bounds kernel read via short Wi-Fi frames

Published Oct 6, 2026 · Updated Oct 6, 2026

Out-of-bounds read in Linux libipw allows physically proximate attackers to make the kernel read beyond a receive buffer with short Wi-Fi frames. In libipw_network_init(), subtracting the 36-byte beacon prefix from a shorter frame length wraps to a large information-element length, which libipw_parse_info_param() uses to walk past the allocation. The path requires an active ipw2100 or ipw2200 receiver within radio range; published validation establishes the out-of-bounds read, not a crash or attacker-visible data leak.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Linux libipw allows physically proximate attackers to make the kernel read beyond a receive buffer with short Wi-Fi frames. In libipw_network_init(), subtracting the 36-byte beacon prefix from a shorter frame length wraps to a large information-element length, which libipw_parse_info_param() uses to walk past the allocation. The path requires an active ipw2100 or ipw2200 receiver within radio range; published validation establishes the out-of-bounds read, not a crash or attacker-visible data leak.

The record

CVE
CVE-2026-98349
Published
Oct 6, 2026
Updated
Oct 6, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.14
  2. Affected versionversion=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <14ae269c1306053ddf1ccf37c4bd66e085a652d1
  3. Affected versionversion=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <19959fb60228f6dccc40d55507f8b1a751c2dc89
  4. Affected versionversion=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <23afeb5d2bdfd34c8a0a661876291a4fa9978293
  5. Affected versionversion=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <2c87bbc00dc93149d1dc4f803ad92d92e4ef3758
  6. Affected versionversion=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <5ce5721e8cbe3e80db8f43851cc2a2a92485ef4b
  7. Affected versionversion=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <89959ff00a978f3172726d3d5f861ee6f1aae26d
  8. Affected versionversion=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <cee6f141b3bebe62eb0363fd147acb52023935f0
  9. Affected versionversion=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <ff756e6647722b7d225d882f7bdb186d8eee318e

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.14; version=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <14ae269c1306053ddf1ccf37c4bd66e085a652d1; version=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <19959fb60228f6dccc40d55507f8b1a751c2dc89; version=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <23afeb5d2bdfd34c8a0a661876291a4fa9978293; version=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <2c87bbc00dc93149d1dc4f803ad92d92e4ef3758; version=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <5ce5721e8cbe3e80db8f43851cc2a2a92485ef4b; version=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <89959ff00a978f3172726d3d5f861ee6f1aae26d; version=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <cee6f141b3bebe62eb0363fd147acb52023935f0; version=b453872c35cfcbdbf5a794737817f7d4e7b1b579 <ff756e6647722b7d225d882f7bdb186d8eee318e

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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