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NVD / CVE Program· CNA Linux

CVE-2022-50437: drm/msm/hdmi: fix memory corruption with too many bridges

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.16% (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 08c7375fa27a8ceee028868e03ffb3a0db919d44, 3c43f3ec731c233eb84b66199ee76dbf3ec6ecae, 4c1294da6aed1f16d47a417dcfe6602833c3c95c.

Low priority for now. Upgrade to Linux Linux 08c7375fa27a8ceee028868e03ffb3a0db919d44, 3c43f3ec731c233eb84b66199ee76dbf3ec6ecae, 4c1294da6aed1f16d47a417dcfe6602833c3c95c 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: drm/msm/hdmi: fix memory corruption with too many bridges Add the missing sanity check on the bridge counter to avoid corrupting data beyond the fixed-sized bridge array in case there are ever more than eight bridges. Patchwork: https://patchwork.freedesktop.org/patch/502670/

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Oct 1, 2025
Updated
Aug 5, 2026
EPSS
0.1% · 6th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
7.8
CNA · Linux
7.8
agree

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-2022-50437

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 kernel3.12 and later · before 4.9.332
  • linux linux kernel4.10 and later · before 4.14.298
  • linux linux kernel4.15 and later · before 4.19.264
  • linux linux kernel4.20 and later · before 5.4.223
  • linux linux kernel5.5 and later · before 5.10.153
  • linux linux kernel5.11 and later · before 5.15.77
  • linux linux kernel5.16 and later · before 6.0.7
  • linux linux kernel6.1

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

    • 3.12affected
    • a3376e3ec81c5dd0622cbc187db76d2824d31c1c and later · before a9c1a6991a9b5aa6d0f2cbc9b8c3bf6c4d094dfaaffected · git
    • a3376e3ec81c5dd0622cbc187db76d2824d31c1c and later · before e8f916b84e4b028ecad6c6472eaad543cc7df806affected · git
    • a3376e3ec81c5dd0622cbc187db76d2824d31c1c and later · before 3c43f3ec731c233eb84b66199ee76dbf3ec6ecaeaffected · git
    • a3376e3ec81c5dd0622cbc187db76d2824d31c1c and later · before ed7f1ff87a4afea1bc220d2ff00a7ce8e61f0b53affected · git
    • a3376e3ec81c5dd0622cbc187db76d2824d31c1c and later · before 08c7375fa27a8ceee028868e03ffb3a0db919d44affected · git
    • a3376e3ec81c5dd0622cbc187db76d2824d31c1c and later · before b48949ab451eaf1e2c04c272c8a9a96a2b56546faffected · git
    • a3376e3ec81c5dd0622cbc187db76d2824d31c1c and later · before 9efb45b45ff6254bfd1f1997a06725cb3fc998a5affected · git
    • a3376e3ec81c5dd0622cbc187db76d2824d31c1c and later · before 4c1294da6aed1f16d47a417dcfe6602833c3c95caffected · git
    • before 3.12not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.7-16.0.7-1

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-2022-50436Oct 1, 2025 · ext4: don't set up encryption key during jbd2 transaction
    22Monitor
  • ← EarlierCVE-2025-39923Oct 1, 2025 · dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees
    22Monitor
  • Later →CVE-2025-39924Oct 1, 2025 · erofs: fix invalid algorithm for encoded extents
    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
Linux Linux08c7375fa27a8ceee028868e03ffb3a0db919d44Vendor (CNA)
Linux Linux3c43f3ec731c233eb84b66199ee76dbf3ec6ecaeVendor (CNA)
Linux Linux4c1294da6aed1f16d47a417dcfe6602833c3c95cVendor (CNA)
Linux Linux9efb45b45ff6254bfd1f1997a06725cb3fc998a5Vendor (CNA)
Linux Linuxa9c1a6991a9b5aa6d0f2cbc9b8c3bf6c4d094dfaVendor (CNA)
Linux Linuxb48949ab451eaf1e2c04c272c8a9a96a2b56546fVendor (CNA)
Linux Linuxe8f916b84e4b028ecad6c6472eaad543cc7df806Vendor (CNA)
Linux Linuxed7f1ff87a4afea1bc220d2ff00a7ce8e61f0b53Vendor (CNA)
debian:linux6.0.7-1 · 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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 (7 more)

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

All records