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NVD / CVE Program· CNA Linux

CVE-2026-53217: net: mvpp2: sync RX data at the hardware packet offset

HighCVSS 8.6 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 34/100)

  • 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: 0.38% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. 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 180235600934bef6add3be637c296d6cf3272e67, 19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8, 23548007b3c66d628fc7d6b80d1e23be04ea10d9; azl3 kernel 6.6.141.1-1 on Azure Linux 3.0 6.6.143.1-1.

Low priority for now. Upgrade to Linux Linux 180235600934bef6add3be637c296d6cf3272e67, 19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8, 23548007b3c66d628fc7d6b80d1e23be04ea10d9; azl3 kernel 6.6.141.1-1 on Azure Linux 3.0 6.6.143.1-1 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

In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: sync RX data at the hardware packet offset mvpp2 programs the RX queue packet offset, so hardware writes received data at dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at dma_addr and only covers rx_bytes + MVPP2_MH_SIZE bytes, which syncs the unused headroom and misses the same number of bytes at the packet tail. On non-coherent DMA systems this can leave the CPU reading stale cache contents for the end of the received frame. Use dma_sync_single_range_for_cpu() with MVPP2_SKB_HEADROOM as the range offset so the sync covers the Marvell header and packet data actually written by hardware.

Published
Jun 25, 2026
Updated
Oct 19, 2026
EPSS
0.3% · 32th percentile

Report tools

JSON

Action score

34

Monitor

Low priority for now.

CVSS
34 / 40 · 8.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
8.6
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.

Follow CVE-2026-53217

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  • 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

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

    • 5.5affected
    • e1921168bbd4810de4197446e52f652cd0dd9541 and later · before 60412bdd1b2576659eac23a23d2d9ff96228a643affected · git
    • e1921168bbd4810de4197446e52f652cd0dd9541 and later · before 19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8affected · git
    • e1921168bbd4810de4197446e52f652cd0dd9541 and later · before a3ad9b5767c89531fc7dae951b51b0933dcf7051affected · git
    • e1921168bbd4810de4197446e52f652cd0dd9541 and later · before bede0f481b9137d73d1cf64309cbe4b94818a5d6affected · git
    • e1921168bbd4810de4197446e52f652cd0dd9541 and later · before 23548007b3c66d628fc7d6b80d1e23be04ea10d9affected · git
    • e1921168bbd4810de4197446e52f652cd0dd9541 and later · before a13199fa224e9f776f4005d5037df03aa9ea8f37affected · git
    • e1921168bbd4810de4197446e52f652cd0dd9541 and later · before e302206ad84a407a7e5f3f6fe767ff5efaace689affected · git
    • e1921168bbd4810de4197446e52f652cd0dd9541 and later · before 180235600934bef6add3be637c296d6cf3272e67affected · git
    • before 5.5not affected · semver
Affected versions · NVD (8)

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

  • linux linux kernel5.5 and later · before 5.10.259
  • linux linux kernel5.11 and later · before 5.15.210
  • linux linux kernel5.16 and later · before 6.1.176
  • linux linux kernel6.2 and later · before 6.6.143
  • linux linux kernel6.7 and later · before 6.12.94
  • linux linux kernel6.13 and later · before 6.18.36
  • linux linux kernel6.19 and later · before 7.0.13
  • linux linux kernel7.1

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 7.0.13-17.0.13-1

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-2026-53213Jun 25, 2026 · drm/vc4: fix krealloc() memory leak
    22Monitor
  • ← EarlierCVE-2026-53215Jun 25, 2026 · net: mvpp2: refill RX buffers before XDP or skb use
    39Monitor
  • Later →CVE-2026-53218Jun 25, 2026 · netfilter: nft_exthdr: fix register tracking for F_PRESENT flag
    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 Linux180235600934bef6add3be637c296d6cf3272e67Vendor (CNA)
Linux Linux19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8Vendor (CNA)
Linux Linux23548007b3c66d628fc7d6b80d1e23be04ea10d9Vendor (CNA)
Linux Linux60412bdd1b2576659eac23a23d2d9ff96228a643Vendor (CNA)
Linux Linuxa13199fa224e9f776f4005d5037df03aa9ea8f37Vendor (CNA)
Linux Linuxa3ad9b5767c89531fc7dae951b51b0933dcf7051Vendor (CNA)
Linux Linuxbede0f481b9137d73d1cf64309cbe4b94818a5d6Vendor (CNA)
Linux Linuxe302206ad84a407a7e5f3f6fe767ff5efaace689Vendor (CNA)
azl3 kernel 6.6.141.1-1 on Azure Linux 3.06.6.143.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
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.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-4598829 days apartrxrpc: Fix re-decryption of RESPONSE packets
    39Monitor
  • CVE-2026-4624422 days apartnetfilter: nft_inner: Fix IPv6 inner_thoff desync
    36Monitor
  • CVE-2026-529201 days apartnetfilter: xt_policy: fix strict mode inbound policy matching
    33Monitor
  • CVE-2026-6417624 days apartwifi: iwlwifi: mvm: fix driver-set TX rates on old devices
    32Monitor
  • CVE-2026-531910 days apartio_uring/net: inherit IORING_CQE_F_BUF_MORE across bundle recv retries
    31Monitor
  • CVE-2026-4593329 days apartbpf: Preserve id of register in sync_linked_regs()
    31Monitor

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet 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
low · data or configuration can be modified
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
Low
Availability impact
Low

Weakness class (CWE)

CWE-682 · Incorrect Calculation

CVSS vector

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

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

—

References

Show all references (7 more)

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

All records