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CVE.org (no NVD analysis yet)· CNA Linux

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

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 035f9b1809861967e58ce652680d70ea1502058f, 1e7aebc188f889b56c3aaeb6133ef6d77022c887, 3e605ff5932afe0970c2beca66f2f1ba2babe4dd; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 035f9b1809861967e58ce652680d70ea1502058f, 1e7aebc188f889b56c3aaeb6133ef6d77022c887, 3e605ff5932afe0970c2beca66f2f1ba2babe4dd; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough Fix multiple out-of-bounds reads in Bluetooth BNEP frame processing: 1. In bnep_rx_frame() and bnep_ctrl_frame() (net/bluetooth/bnep/core.c), use pskb_may_pull() to verify the BNEP header, control type byte, filter count, and extension headers exist before reading them, and return 0 after handling BNEP_CONTROL instead of falling through to Ethernet frame submission when no extension headers follow. 2. In bnep_net_xmit() (net/bluetooth/bnep/netdev.c), verify skb->len >= ETH_HLEN with pskb_may_pull() before reading the 14-byte Ethernet header to prevent an out-of-bounds heap read and infoleak on short AF_PACKET TX frames.

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1caaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 667aa703e11cdc237d169393bc6a5ea9acbb33c2affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 3e605ff5932afe0970c2beca66f2f1ba2babe4ddaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 035f9b1809861967e58ce652680d70ea1502058faffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 1e7aebc188f889b56c3aaeb6133ef6d77022c887affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 8f31031326994d1abfcc6ebb6927ef96e51fb9ffaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before ad0d2d4ada51321db787262ef343193c712b76b5affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91eaffected · git
    • before 2.6.12not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.9-17.2.9-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-98600Oct 18, 2026 · Bluetooth: RFCOMM: Reject short EA=0 frames in rfcomm_recv_frame()
    0Monitor
  • ← EarlierCVE-2026-98601Oct 18, 2026 · Bluetooth: btintel_pcie: validate device-supplied DMA indices
    0Monitor
  • Later →CVE-2026-98603Oct 18, 2026 · ovpn: replace bind when clearing stale local source
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux035f9b1809861967e58ce652680d70ea1502058fVendor (CNA)
Linux Linux1e7aebc188f889b56c3aaeb6133ef6d77022c887Vendor (CNA)
Linux Linux3e605ff5932afe0970c2beca66f2f1ba2babe4ddVendor (CNA)
Linux Linux667aa703e11cdc237d169393bc6a5ea9acbb33c2Vendor (CNA)
Linux Linux7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1caVendor (CNA)
Linux Linux8f31031326994d1abfcc6ebb6927ef96e51fb9ffVendor (CNA)
Linux Linuxad0d2d4ada51321db787262ef343193c712b76b5Vendor (CNA)
Linux Linuxf0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91eVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 7, 2026+20 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Exploit maturity— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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