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  4. CVE 2025 40282 bluetooth 6lowpan reset link local header on ipv6
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Back to active CVEs
High · CVSS 8.8CVE-2025-40282

Bluetooth: 6lowpan: reset link-local header on ipv6 recv pathCVE-2025-40282

Answer in brief

CVE-2025-40282 records a High severity (CVSS 8.8) vulnerability in Bluetooth: 6lowpan: reset link-local header on ipv6 recv path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Dec 6, 2025Updated Oct 15, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=18722c247023035b9e2e2a08a887adec2a9a6e49 <ea46a1d217bc82e01cf3d0424e50ebfe251e34bf || >=18722c247023035b9e2e2a08a887adec2a9a6e49 <973e0271754c77db3e1b6b69adf2de85a79a4c8b || >=18722c247023035b9e2e2a08a887adec2a9a6e49 <d566e9a2bfc848941b091ffd5f4e12c4e889d818 || >=18722c247023035b9e2e2a08a887adec2a9a6e49 <4ebb90c3c309e6375dc3e841af92e2a039843e62 || >=18722c247023035b9e2e2a08a887adec2a9a6e49 <c24ac6cfe4f9a47180a65592c47e7a310d2f9d93 || >=18722c247023035b9e2e2a08a887adec2a9a6e49 <11cd7e068381666f842ad41d1cc58eecd0c75237 || >=18722c247023035b9e2e2a08a887adec2a9a6e49 <70d84e7c3a44b81020a3c3d650a64c63593405bd || >=18722c247023035b9e2e2a08a887adec2a9a6e49 <3b78f50918276ab28fb22eac9aa49401ac436a3bea46a1d217bc82e01cf3d0424e50ebfe251e34bf, 973e0271754c77db3e1b6b69adf2de85a79a4c8b, d566e9a2bfc848941b091ffd5f4e12c4e889d818, 4ebb90c3c309e6375dc3e841af92e2a039843e62, c24ac6cfe4f9a47180a65592c47e7a310d2f9d93, 11cd7e068381666f842ad41d1cc58eecd0c75237, 70d84e7c3a44b81020a3c3d650a64c63593405bd, 3b78f50918276ab28fb22eac9aa49401ac436a3b
Linux/Linuxgeneric3.14Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to ea46a1d217bc82e01cf3d0424e50ebfe251e34bf if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Dec 6, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: 6lowpan: reset link-local header on ipv6 recv path Bluetooth 6lowpan.c netdev has header_ops, so it must set link-local header for RX skb, otherwise things crash, eg. with AF_PACKET SOCK_RAW Add missing skb_reset_mac_header() for uncompressed ipv6 RX path. For the compressed one, it is done in lowpan_header_decompress(). Log: (BlueZ 6lowpan-tester Client Recv Raw - Success) ------ kernel BUG at net/core/skbuff.c:212! Call Trace: <IRQ> ... packet_rcv (net/packet/af_packet.c:2152) ... <TASK> __local_bh_enable_ip (kernel/softirq.c:407) netif_rx (net/core/dev.c:5648) chan_recv_cb (net/bluetooth/6lowpan.c:294 net/bluetooth/6lowpan.c:359) ------

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 4, 2026
References
8 linked sources
Open source record