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CVE-2022-49048· NVD / CVE Program· CNA Linux

ipv6: fix panic when forwarding a pkt with no in6 dev

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.69% (FIRST EPSS); higher than 51.9% of all records.
  • 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.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Linux Linux 4.19.239, 5.10.112, 5.14.
  • Severity is disputed: the assigning authority (CNA) scores it 7.5, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 4.19.239, 5.10.112, 5.14 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: ipv6: fix panic when forwarding a pkt with no in6 dev kongweibin reported a kernel panic in ip6_forward() when input interface has no in6 dev associated. The following tc commands were used to reproduce this panic: tc qdisc del dev vxlan100 root tc qdisc add dev vxlan100 root netem corrupt 5%

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Oct 15, 2026
EPSS
0.6% · 51th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · Linux
7.5
2.0 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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.

Follow CVE-2022-49048

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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

Affected versions

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

  • linux linux kernel4.19.199 and later · before 4.19.239
  • linux linux kernel5.4.136 and later · before 5.4.190
  • linux linux kernel5.10.54 and later · before 5.10.112
  • linux linux kernel5.13.6 and later · before 5.14
  • linux linux kernel5.14.1 and later · before 5.15.35
  • linux linux kernel5.16 and later · before 5.17.4
  • linux linux kernel5.14
  • linux linux kernel5.18

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

    • 350e10d217337480158b604bbf6601c50ed161c6, 5.14affected
    • bff0854e2f804f68d3e93d19e4580dbd69777e1d and later · before 74b68f5249f16c5f7f675d0f604fa6ae20e3a151affected · git
    • 7f4848229e91d508102b30396b8a1b710ac23637 and later · before ab2f5afb7af5c68389e8c7dd29e0a98fbeaaa435affected · git
    • 79ec7b5b2f4fe38e5c7459ed0bdff4ef3386ab63 and later · before a263712ba8c9ded25dd9d2d5ced11bcea5b33a3eaffected · git
    • ccd27f05ae7b8ebc40af5b004e94517a919aa862 and later · before adee01bbf6cb5b3e4ed08be8ff866aac90f13836affected · git
    • ccd27f05ae7b8ebc40af5b004e94517a919aa862 and later · before e69fb3de87a8923e5931a272a38fa3cceb01da44affected · git
    • ccd27f05ae7b8ebc40af5b004e94517a919aa862 and later · before e3fa461d8b0e185b7da8a101fe94dfe6dd500ac0affected · git
    • 4.19.199 and later · before 4.19.239affected · semver
    • 5.4.136 and later · before 5.4.190affected · semver
    • 5.10.54 and later · before 5.10.112affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.17.6-15.17.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • 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
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49729Feb 26, 2025 · nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
    22Monitor
  • ← EarlierCVE-2022-49731Feb 26, 2025 · ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
    22Monitor
  • Later →CVE-2022-49089Feb 26, 2025 · IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition
    18Monitor

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 Linux4.19.239Vendor (CNA)
Linux Linux5.10.112Vendor (CNA)
Linux Linux5.14Vendor (CNA)
Linux Linux5.4.190Vendor (CNA)
Linux Linux74b68f5249f16c5f7f675d0f604fa6ae20e3a151Vendor (CNA)
Linux Linuxa263712ba8c9ded25dd9d2d5ced11bcea5b33a3eVendor (CNA)
Linux Linuxab2f5afb7af5c68389e8c7dd29e0a98fbeaaa435Vendor (CNA)
Linux Linuxadee01bbf6cb5b3e4ed08be8ff866aac90f13836Vendor (CNA)
Linux Linuxe3fa461d8b0e185b7da8a101fe94dfe6dd500ac0Vendor (CNA)
Linux Linuxe69fb3de87a8923e5931a272a38fa3cceb01da44Vendor (CNA)
debian:linux5.17.6-1 · 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.

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).

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

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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.

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

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (5 more)

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

All records