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NVD / CVE Program· CNA XEN

CVE-2022-3643: Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a

Noroxi assessment

Priority: Monitor (action score 26/100)

  • 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: 0.48% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: linux (Debian:10) 4.19.269-1; linux-5.10 (Debian:10) 5.10.158-2~deb10u1; linux (Debian:12) 6.1.4-1.
  • Mentioned 3 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to linux (Debian:10) 4.19.269-1; linux-5.10 (Debian:10) 5.10.158-2~deb10u1; linux (Debian:12) 6.1.4-1 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

Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Dec 6, 2022
Updated
Jun 17, 2026
EPSS
0.4% · 41th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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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.

VendorProduct
linuxlinux kernel
broadcombcm5780
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux10.0
  • linux linux kernel4.10 and later · before 4.14.302
  • linux linux kernel4.15 and later · before 4.19.269
  • linux linux kernel4.20 and later · before 5.4.227
  • linux linux kernel3.19 and later · before 4.9.336
  • linux linux kernel5.11 and later · before 5.15.83
  • linux linux kernel5.16 and later · before 6.0.13
  • linux linux kernel5.5 and later · before 5.10.159

Versions reported by the vendor

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

  • Linux Linux

    • consult Xen advisory XSA-423unknown

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:10linuxbefore 4.19.269-14.19.269-1
Debian:10linux-5.10before 5.10.158-2~deb10u15.10.158-2~deb10u1
Debian:12linuxbefore 6.1.4-16.1.4-1
openSUSE:Leap 15.3kernel-debugbefore 4.12.14-150100.197.131.14.12.14-150100.197.131.1
openSUSE:Leap 15.3kernel-defaultbefore 4.12.14-150100.197.131.14.12.14-150100.197.131.1
openSUSE:Leap 15.3kernel-kvmsmallbefore 4.12.14-150100.197.131.14.12.14-150100.197.131.1
openSUSE:Leap 15.3kernel-vanillabefore 4.12.14-150100.197.131.14.12.14-150100.197.131.1
openSUSE:Leap 15.3kernel-zfcpdumpbefore 4.12.14-150100.197.131.14.12.14-150100.197.131.1
openSUSE:Leap 15.4dtb-aarch64before 5.3.18-150300.59.109.15.3.18-150300.59.109.1
openSUSE:Leap 15.4dtb-aarch64before 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-64kbbefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-azurebefore 5.14.21-150400.14.28.15.14.21-150400.14.28.1
openSUSE:Leap 15.4kernel-debugbefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-defaultbefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-default-basebefore 5.14.21-150400.24.38.1.150400.24.13.25.14.21-150400.24.38.1.150400.24.13.2
openSUSE:Leap 15.4kernel-docsbefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-kvmsmallbefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-obs-buildbefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-obs-qabefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-sourcebefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-source-azurebefore 5.14.21-150400.14.28.15.14.21-150400.14.28.1
openSUSE:Leap 15.4kernel-symsbefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1
openSUSE:Leap 15.4kernel-syms-azurebefore 5.14.21-150400.14.28.15.14.21-150400.14.28.1
openSUSE:Leap 15.4kernel-zfcpdumpbefore 5.14.21-150400.24.38.15.14.21-150400.24.38.1

+60

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-45869Nov 30, 2022 · A race condition in the x86 KVM subsystem in the Linux kernel through 6.1-rc6 allows guest OS users to cause a denial of service (host OS cr
    22Monitor
  • ← EarlierCVE-2022-4269Dec 5, 2022 · A flaw was found in the Linux kernel Traffic Control (TC) subsystem.
    22Monitor
  • Later →CVE-2022-42328Dec 7, 2022 · Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/v
    22Monitor

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
debian:linux6.1.4-1 · Debian:12Package registry (OSV)
debian:linux-5.105.10.158-2~deb10u1 · Debian:10Package registry (OSV)
opensuse:dtb-aarch645.14.21-150400.24.38.1 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:kernel-64kb5.14.21-150400.24.38.1 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:kernel-azure5.14.21-150400.14.28.1 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:kernel-debug4.12.14-150100.197.131.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-default4.12.14-150100.197.131.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-default-base5.14.21-150400.24.38.1.150400.24.13.2 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:kernel-docs5.14.21-150400.24.38.1 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:kernel-kvmsmall4.12.14-150100.197.131.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-source-azure5.14.21-150400.14.28.1 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:kernel-syms-azure5.14.21-150400.14.28.1 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:kernel-vanilla4.12.14-150100.197.131.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-zfcpdump4.12.14-150100.197.131.1 · openSUSE:Leap 15.3Package registry (OSV)
suse:kernel-64kb5.14.21-150400.24.38.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP4Package registry (OSV)
suse:kernel-azure5.14.21-150400.14.28.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP4Package registry (OSV)
suse:kernel-default4.12.14-122.144.1 · SUSE:Linux Enterprise High Availability Extension 12 SP5Package registry (OSV)
suse:kernel-default4.12.14-150100.197.131.1 · SUSE:Linux Enterprise Live Patching 15 SP1Package registry (OSV)
suse:kernel-docs4.12.14-122.144.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5Package registry (OSV)
suse:kernel-docs4.12.14-150100.197.131.1 · SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOSPackage registry (OSV)
suse:kernel-livepatch-SLE15-SP1_Update_361-150100.3.5.1 · SUSE:Linux Enterprise Live Patching 15 SP1Package registry (OSV)
suse:kernel-obs-build4.12.14-122.144.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5Package registry (OSV)
suse:kernel-obs-build4.12.14-150100.197.131.1 · SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOSPackage registry (OSV)
suse:kernel-source4.12.14-122.144.1 · SUSE:Linux Enterprise Server 12 SP5Package registry (OSV)
suse:kernel-source4.12.14-150100.197.131.1 · SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOSPackage registry (OSV)
suse:kernel-source-azure5.14.21-150400.14.28.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP4Package registry (OSV)
suse:kernel-syms4.12.14-122.144.1 · SUSE:Linux Enterprise Server 12 SP5Package registry (OSV)
suse:kernel-syms4.12.14-150100.197.131.1 · SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOSPackage registry (OSV)
suse:kernel-syms-azure5.14.21-150400.14.28.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP4Package registry (OSV)
suse:kernel-zfcpdump4.12.14-150100.197.131.1 · SUSE:Linux Enterprise Server 15 SP1-LTSSPackage registry (OSV)

+1

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.

No dated events beyond publication.

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

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

nvd-primary

Attack context

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

Change log

  1. Fix✗ → ✓

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

References

Show all references (4 more)

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

All records