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NVD / CVE Program· CNA Linux

CVE-2026-64039: drm/msm/snapshot: fix dumping of the unaligned regions

Noroxi assessment

Priority: Monitor (action score 30/100)

  • 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: 0.18% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 070e40acc59ef7bedba0314f59971ba87fcc8ab0, 0c90ececfad3fc5c4c43a75ece0e2d736ab3def1, 1ef79be774706dddcfcace0331fa7ff32a73c73e.

Low priority for now. Upgrade to Linux Linux 070e40acc59ef7bedba0314f59971ba87fcc8ab0, 0c90ececfad3fc5c4c43a75ece0e2d736ab3def1, 1ef79be774706dddcfcace0331fa7ff32a73c73e 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/snapshot: fix dumping of the unaligned regions The snapshotting code internally aligns data segment to 16 bytes. This works fine for DPU code (where most of the regions are aligned), but fails for snapshotting of the DSI data (because DSI data region is shifted by 4 bytes). Fix the code by removing length alignment and by accurately printing last registers in the region. While reworking the code also fix the 16x memory overallocation in msm_disp_state_dump_regs(). Patchwork: https://patchwork.freedesktop.org/patch/725449/

HighCVSS 7.7 · v3.1—No exploit Fix available
Published
Jul 19, 2026
Updated
Oct 13, 2026
EPSS
0.1% · 8th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.7
NVD has not scored this yet; the score shown is the CNA’s.

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.

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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 kernel5.14 and later · before 5.15.209
  • linux linux kernel5.16 and later · before 6.1.175
  • linux linux kernel6.2 and later · before 6.6.142
  • linux linux kernel6.7 and later · before 6.12.92
  • linux linux kernel6.13 and later · before 6.18.34
  • linux linux kernel6.19 and later · before 7.0.11
  • linux linux kernel7.1

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

    • 5.14affected
    • 98659487b845c05b6bed85d881713545db674c7c and later · before 8fb070cf95847b29ef6cb15ec2c0de2bf4704676affected · git
    • 98659487b845c05b6bed85d881713545db674c7c and later · before cecd34e046121d788a70b5c8b4f8a88916637953affected · git
    • 98659487b845c05b6bed85d881713545db674c7c and later · before 070e40acc59ef7bedba0314f59971ba87fcc8ab0affected · git
    • 98659487b845c05b6bed85d881713545db674c7c and later · before 1ef79be774706dddcfcace0331fa7ff32a73c73eaffected · git
    • 98659487b845c05b6bed85d881713545db674c7c and later · before cdd1aaf0ee962f50810b9aef7928f2313989d55faffected · git
    • 98659487b845c05b6bed85d881713545db674c7c and later · before 0c90ececfad3fc5c4c43a75ece0e2d736ab3def1affected · git
    • 98659487b845c05b6bed85d881713545db674c7c and later · before 76824d2467feb1828b745d6add2541918d7be3daaffected · git
    • before 5.14not affected · semver
    • 5.15.209 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.176-16.1.176-1
Debian:13linuxbefore 6.12.94-16.12.94-1
Debian:14linuxbefore 7.0.12-17.0.12-1

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-2026-64037Jul 19, 2026 · wifi: iwlwifi: mld: fix TSO segmentation explosion when AMSDU is disabled
    39Monitor
  • ← EarlierCVE-2026-64038Jul 19, 2026 · hwmon: (lm90) Stop work before releasing hwmon device
    18Monitor
  • Later →CVE-2026-64040Jul 19, 2026 · cachefiles: Fix error return when vfs_mkdir() fails
    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 Linux070e40acc59ef7bedba0314f59971ba87fcc8ab0Vendor (CNA)
Linux Linux0c90ececfad3fc5c4c43a75ece0e2d736ab3def1Vendor (CNA)
Linux Linux1ef79be774706dddcfcace0331fa7ff32a73c73eVendor (CNA)
Linux Linux76824d2467feb1828b745d6add2541918d7be3daVendor (CNA)
Linux Linux8fb070cf95847b29ef6cb15ec2c0de2bf4704676Vendor (CNA)
Linux Linuxcdd1aaf0ee962f50810b9aef7928f2313989d55fVendor (CNA)
Linux Linuxcecd34e046121d788a70b5c8b4f8a88916637953Vendor (CNA)
debian:linux6.1.176-1 · 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.

  • CVE-2026-3147888 days apartksmbd: replace hardcoded hdr2_len with offsetof() in smb2_calc_max_out_buf_len()
    39Monitor
  • CVE-2026-5309125 days apartnet: pull headers in qdisc_pkt_len_segs_init()
    33Monitor
  • CVE-2026-533663 days apartipv4: account for fraggap on the paged allocation path
    31Monitor
  • CVE-2026-4330272 days apartdrm/v3d: Set DMA segment size to avoid debug warnings
    22Monitor
  • CVE-2025-7128674 days apartASoC: SOF: ipc4-topology: Correct the allocation size for bytes controls
    22Monitor
  • CVE-2026-4310774 days apartxfrm: account XFRMA_IF_ID in aevent size calculation
    22Monitor

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.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-131 · Incorrect Calculation of Buffer Size

CVSS vector

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

nvd-secondary

Attack context

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

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (6 more)

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

All records