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NVD / CVE Program· CNA Linux

CVE-2022-50181: virtio-gpu: fix a missing check to avoid NULL dereference

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: 0.25% (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 Linux 259773fc874258606c0121767a4a27466ff337eb, 367882a5a9448b5e1ba756125308092d614cb96c, 39caef09666c1d8274abf9472c72bcac236dc5fb.

Low priority for now. Upgrade to Linux Linux 259773fc874258606c0121767a4a27466ff337eb, 367882a5a9448b5e1ba756125308092d614cb96c, 39caef09666c1d8274abf9472c72bcac236dc5fb 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: virtio-gpu: fix a missing check to avoid NULL dereference 'cache_ent' could be set NULL inside virtio_gpu_cmd_get_capset() and it will lead to a NULL dereference by a lately use of it (i.e., ptr = cache_ent->caps_cache). Fix it with a NULL check. [ kraxel: minor codestyle fixup ]

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jun 18, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 16th percentile

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 · 0.2%

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

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Follow CVE-2022-50181

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 kernel4.4 and later · before 5.10.137
  • linux linux kernel5.11 and later · before 5.15.61
  • linux linux kernel5.16 and later · before 5.18.18
  • linux linux kernel5.19 and later · before 5.19.2

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

    • 4.4affected
    • 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 and later · before 259773fc874258606c0121767a4a27466ff337ebaffected · git
    • 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 and later · before 39caef09666c1d8274abf9472c72bcac236dc5fbaffected · git
    • 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 and later · before adbdd21983fa292e53aec3eab97306b2961ea887affected · git
    • 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 and later · before 367882a5a9448b5e1ba756125308092d614cb96caffected · git
    • 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 and later · before bd63f11f4c3c46afec07d821f74736161ff6e526affected · git
    • before 4.4not affected · semver
    • 5.10.137 and later · up to and including 5.10.*not affected · semver
    • 5.15.61 and later · up to and including 5.15.*not affected · semver
    • 5.18.18 and later · up to and including 5.18.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.2-16.0.2-1

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-2022-50177Jun 18, 2025 · rcutorture: Fix ksoftirqd boosting timing and iteration
    22Monitor
  • ← EarlierCVE-2022-50178Jun 18, 2025 · wifi: rtw89: 8852a: rfk: fix div 0 exception
    22Monitor
  • Later →CVE-2022-50182Jun 18, 2025 · media: imx-jpeg: Align upwards buffer size
    28Monitor

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 Linux259773fc874258606c0121767a4a27466ff337ebVendor (CNA)
Linux Linux367882a5a9448b5e1ba756125308092d614cb96cVendor (CNA)
Linux Linux39caef09666c1d8274abf9472c72bcac236dc5fbVendor (CNA)
Linux Linuxadbdd21983fa292e53aec3eab97306b2961ea887Vendor (CNA)
Linux Linuxbd63f11f4c3c46afec07d821f74736161ff6e526Vendor (CNA)
debian:linux6.0.2-1 · 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.

No history yet (it accumulates with the daily EPSS job).

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)

CWE-476 · NULL Pointer Dereference

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. 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