CVE-2022-42896

HIGHNVD 8.08.8▲
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-11-23. NVD baseline CVSS 8.0; sources differ by 0.8.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.1%CVSS: 8.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim.

We recommend upgrading past commit  https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url

CVSS v3
8.0
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation2% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
2.1%
EPSS %ILE
81st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

November 23, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Sep 20, 2026
Patch available. Sources: github_commit.
generic

🐧🕺

https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4
github_commit

commit 711f8c3fb3db (torvalds/linux)

Fix landed in torvalds/linux commit 711f8c3fb3db — awaiting tagged release

https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4

Vendor Advisories for CVE-2022-42896(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(25)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-gkeop-cloud-tools-5.4.0-1062 (5.4.0-1062.66) @ focal2026-05-25ubuntu
ubuntulinux-lowlatency-cloud-tools-5.19.0-1015 (5.19.0-1015.16) @ kinetic2026-05-25ubuntu
ubuntulinux-modules-4.15.0-1126-raspi2 (4.15.0-1126.134) @ bionic2026-05-25ubuntu
ubuntulinux-image-raspi2-hwe-18.04 (5.4.0.1079.109) @ focal2026-05-25ubuntu
ubuntulinux-modules-6.0.0-1008-oem (6.0.0-1008.8) @ jammy2026-05-25ubuntu
ubuntulinux-headers-oem-22.04 (5.17.0.1025.23) @ jammy2026-05-25ubuntu
ubuntulinux-modules-4.4.0-1153-aws (4.4.0-1153.168) @ xenial2026-05-25ubuntu
ubuntulinux-image-lowlatency (4.4.0.236.242) @ xenial2026-05-25ubuntu
ubuntulinux-tools-5.19.0-29-generic-64k (5.19.0-29.30) @ kinetic2026-05-25ubuntu
redhatkernel-0:3.10.0-1062.87.1.el72024-04-10redhat
redhatkernel-rt-0:3.10.0-1160.114.2.rt56.1266.el72024-03-14redhat
redhatkpatch-patch2024-03-13redhat
redhatkernel-0:3.10.0-1160.114.2.el72024-03-12redhat
redhatkernel-0:3.10.0-957.111.1.el72024-02-26redhat
redhatkernel-rt-0:4.18.0-193.116.1.rt13.167.el8_22023-10-10redhat
redhatkernel-0:4.18.0-193.116.1.el8_22023-10-10redhat
redhatkernel-0:4.18.0-372.70.1.el8_62023-08-29redhat
redhatkernel-rt-0:4.18.0-477.21.1.rt7.284.el8_82023-08-08redhat
redhatkernel-0:4.18.0-477.21.1.el8_82023-08-08redhat
redhatkernel-0:5.14.0-70.64.1.el9_02023-07-18redhat
redhatkernel-rt-0:5.14.0-70.64.1.rt21.135.el9_02023-07-18redhat
redhatkernel-rt-0:4.18.0-305.91.1.rt7.166.el8_42023-06-06redhat
redhatkernel-0:4.18.0-305.91.1.el8_42023-06-06redhat
redhatkernel-rt-0:5.14.0-284.11.1.rt14.296.el9_22023-05-09redhat
redhatkernel-0:5.14.0-284.11.1.el9_22023-05-09redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(6 across 5 ecosystems)
Debian:10(2)
PackageVulnerable rangeFix by version rangeDependents
linux4.19.118-1 ... 4.19.98-1~bpo9+1 (41 versions)
  • every version up to 4.19.269-1: fixed in 4.19.269-1
—
linux-5.105.10.136-1~deb10u1, 5.10.136-1~deb10u2, 5.10.136-1~deb10u3, 5.10.149-2~deb10u1
  • every version up to 5.10.158-2~deb10u1: fixed in 5.10.158-2~deb10u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (22 versions)
  • every version up to 5.10.158-1: fixed in 5.10.158-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.0.10-1: fixed in 6.0.10-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.0.10-1: fixed in 6.0.10-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.0.10-1: fixed in 6.0.10-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 6× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 179 total refreshes for this CVE.

  1. 2026-10-09 20:04 UTCEPSS rescore
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  23. 2026-08-18 09:34 UTCOSV refresh
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  41. 2026-08-03 04:57 UTCOSV refresh
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  55. 2026-07-23 02:14 UTCEG score recompute
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  57. 2026-07-22 14:06 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-42896?
CVE-2022-42896 is a high vulnerability published on November 23, 2022. There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2capcore.c's l2capconnect and l2capleconnect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via…
When was CVE-2022-42896 disclosed?
CVE-2022-42896 was first published on November 23, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-42896 actively exploited?
CVE-2022-42896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.1% probability of exploitation in the next 30 days (81st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-42896?
CVE-2022-42896 has a CVSS v3 base score of 8.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.8 (HIGH).
How do I remediate CVE-2022-42896?
A fix for CVE-2022-42896 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-42896 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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