VulnerabilityPublished 18 Oct 2026

CVE-2026-98602: Linux kernel · Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough

Source GCVE Database

Authoritative record:CVE-2026-98602· High

Not known to be exploited · fixed in f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e : patch Linux kernel soon.

Data as of 26 Oct 2026, 17:16 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e, ad0d2d4ada51321db787262ef343193c712b76b5, 667aa703e11cdc237d169393bc6a5ea9acbb33c2 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-qjmf-g685-hvmr

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e	Fixed in f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ad0d2d4ada51321db787262ef343193c712b76b5	Fixed in ad0d2d4ada51321db787262ef343193c712b76b5
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 667aa703e11cdc237d169393bc6a5ea9acbb33c2	Fixed in 667aa703e11cdc237d169393bc6a5ea9acbb33c2
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 035f9b1809861967e58ce652680d70ea1502058f	Fixed in 035f9b1809861967e58ce652680d70ea1502058f
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8f31031326994d1abfcc6ebb6927ef96e51fb9ff	Fixed in 8f31031326994d1abfcc6ebb6927ef96e51fb9ff
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca	Fixed in 7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca

AI-suggested

A fix has been implemented in the Linux kernel to address these out-of-bounds read issues by adding proper length checks and control flow corrections. Users should apply the official kernel updates that include these patches to remediate the vulnerability. Patch status is not explicitly confirmed in the provided data; users should consult the vendor advisory or Linux kernel mailing lists for the specific fixed versions and update accordingly.

Description

A vulnerability in the Linux kernel's Bluetooth BNEP implementation allowed out-of-bounds reads on short RX/TX frames and control fallthrough. The issue was fixed by adding proper length checks before accessing frame headers and preventing unintended fallthrough in control frame processing.

References

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