Is there a patch available for EUVD-2026-103645?

Yes, a patch is available for EUVD-2026-103645. Update the affected software to the latest version immediately.

Linux EUVD-2026-103645

| CVE-2026-98600

2026-10-18 Linux

GHSA-hpgr-cqmv-php2

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Awaiting Data No severity or threat signals available yet. Label will update when CVSS score is published or threat intelligence arrives. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: RFCOMM: Reject short EA=0 frames in rfcomm_recv_frame()

While rfcomm_recv_frame() verifies that skb->len is at least sizeof(*hdr) + 1 (4 bytes: 3-byte header + 1-byte FCS), an RFCOMM frame with an extended 2-byte length field (!__test_ea(hdr->len)) has a 4-byte header plus a 1-byte FCS (5 bytes minimum, sizeof(*hdr) + 2).

When a 4-byte RFCOMM frame with EA == 0 arrives:

The initial skb->len < sizeof(*hdr) + 1 check passes (4 < 4 is false).
Trimming the FCS byte decrements skb->len to 3.
If __check_fcs() succeeds, skb_pull(skb, 4) fails (4 > 3) and returns

NULL without advancing skb->data.

Because the return value of skb_pull() is ignored, the un-pulled

3-byte struct rfcomm_hdr remains at skb->data and is either queued as application payload via rfcomm_recv_data() or parsed as a multiplexer control command via rfcomm_recv_mcc() on DLCI 0.

Fix this by extending the length check in rfcomm_recv_frame() to also require skb->len >= sizeof(*hdr) + 2 when !__test_ea(hdr->len).

Affected VersionsENISA

Linux 7.2

Linux b230e5bf501c5edaf2eb0991cb862ac142031d4b <9240fc1f2cde5331c61608da21b00394602ca762

Linux b161eacd7fa4a2d765724b5504ac6cc388e48f80 <7a1781a2f3a9667b3065d402d1f11986a2363e08

Linux bbc310caa2b6bf5fe42896ba27da0fbc12e4ac51 <be00deee60044ffa820f9436415caeb665b2cda0

Linux patch: 6.18.55

Linux 30d1d9f3495463f7c026e4c553127f79b486fcd6 <c25587fa26761e623198b4f47151fe79d09ccde6

Linux 6.12.111 <6.12.112

Linux b230e5bf501c5edaf2eb0991cb862ac142031d4b <6d91041bb38b97e2feb625123cc0529d7b83a0e1

Linux patch: 7.3-rc5

Linux patch: 6.12.112

Linux patch: 7.2.9

Linux patch: 0

Linux 67dc3b40fae71b6b11c71e7ff69bac0758818c05 <71ccacde407b7d8f0ef48974a0d2524602fd5c44

Linux fb40eda15122f6b780228639c1ead6820340ff54 <76876fd26569302d26d91cbe8b75fa8e66cf8969

Linux 3829af5fab5a22405bf1e7d69068c2ec0fce46ca <97711b964877242933484989224a3c4c5d88a5ee

Linux 6.18.53 <6.18.55

Affected Packages

euvd linux fix: 6.12.112, 6.18.55

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

Patch available

Oct 18, 2026 - 16:02 EUVD

CVE Published

Oct 18, 2026 - 15:19 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 93% exploitable

Data Quality

2 sources

Confidence: Low

EUVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC No

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + weak signal (CWE or non-zero EPSS)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.