CVE-2026-46070: md/raid5: validate payload size before accessing journal metadata
Noroxi assessment
Priority: Monitor (action score 28/100)
- 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: 0.12% (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 28d3ff7109c66e99dc1b7cddacb5c760849620ef, 33698bd1b2db9764a29df7751533d33967ff5c98, 406aa86394ead347c47428fb51b6359bdaa2257d; azl3 kernel 6.6.139.1-1 on Azure Linux 3.0 6.6.141.1-1.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Linux Linux 28d3ff7109c66e99dc1b7cddacb5c760849620ef, 33698bd1b2db9764a29df7751533d33967ff5c98, 406aa86394ead347c47428fb51b6359bdaa2257d; azl3 kernel 6.6.139.1-1 on Azure Linux 3.0 6.6.141.1-1 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: md/raid5: validate payload size before accessing journal metadata r5c_recovery_analyze_meta_block() and r5l_recovery_verify_data_checksum_for_mb() iterate over payloads in a journal metadata block using on-disk payload size fields without validating them against the remaining space in the metadata block. A corrupted journal contains payload sizes extending beyond the PAGE_SIZE boundary can cause out-of-bounds reads when accessing payload fields or computing offsets. Add bounds validation for each payload type to ensure the full payload fits within meta_size before processing.
- Published
- May 27, 2026
- Updated
- Oct 19, 2026
- EPSS
- 0.1% · 2th percentile
- CWE
- CWE-787
Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · Linux
- 7.1
- 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.
Is your version affected? Check itNoroxi 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.
We use this product, ask for helpAffected 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.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel4.10 and later · before 5.10.258
- linux linux kernel5.11 and later · before 5.15.209
- linux linux kernel5.16 and later · before 6.1.175
- linux linux kernel6.2 and later · before 6.6.140
- linux linux kernel6.7 and later · before 6.12.86
- linux linux kernel6.13 and later · before 6.18.27
- linux linux kernel6.19 and later · before 7.0.4
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
- 4.10affected
- b4c625c67362b3940f619c1a836b4e8329106658 and later · before c96c6f01d84b5c67db1bf1cc8591c0b7146826fcaffected · git
- b4c625c67362b3940f619c1a836b4e8329106658 and later · before ef4851d8324fd978ca1ff9ec76a275438f887743affected · git
- b4c625c67362b3940f619c1a836b4e8329106658 and later · before 28d3ff7109c66e99dc1b7cddacb5c760849620efaffected · git
- b4c625c67362b3940f619c1a836b4e8329106658 and later · before 33698bd1b2db9764a29df7751533d33967ff5c98affected · git
- b4c625c67362b3940f619c1a836b4e8329106658 and later · before c3a1cf78bd1bbb51b2cc5189b4743056553c1e0eaffected · git
- b4c625c67362b3940f619c1a836b4e8329106658 and later · before 73ce72edd113374801045924d4417199963f73a3affected · git
- b4c625c67362b3940f619c1a836b4e8329106658 and later · before 406aa86394ead347c47428fb51b6359bdaa2257daffected · git
- b4c625c67362b3940f619c1a836b4e8329106658 and later · before b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9affected · git
- before 4.10not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.176-1 | 6.1.176-1 |
| Debian:13 | linux | before 6.12.86-1 | 6.12.86-1 |
| Debian:14 | linux | before 7.0.4-1 | 7.0.4-1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | before 4.12.14-122.328.1 | 4.12.14-122.328.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_87 | before 1-8.5.1 | 1-8.5.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-source | before 4.12.14-122.328.1 | 4.12.14-122.328.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-syms | before 4.12.14-122.328.1 | 4.12.14-122.328.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- 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…KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
Published before and after this one in the same product
- ← EarlierCVE-2026-46068May 27, 2026 · crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx31Monitor
- ← EarlierCVE-2026-46069May 27, 2026 · wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup()31Monitor
- Later →CVE-2026-46071May 27, 2026 · KVM: nSVM: Avoid clearing VMCB_LBR in vmcb1222Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 28d3ff7109c66e99dc1b7cddacb5c760849620ef | Vendor (CNA) |
| Linux Linux | 33698bd1b2db9764a29df7751533d33967ff5c98 | Vendor (CNA) |
| Linux Linux | 406aa86394ead347c47428fb51b6359bdaa2257d | Vendor (CNA) |
| Linux Linux | 73ce72edd113374801045924d4417199963f73a3 | Vendor (CNA) |
| Linux Linux | b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9 | Vendor (CNA) |
| Linux Linux | c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e | Vendor (CNA) |
| Linux Linux | c96c6f01d84b5c67db1bf1cc8591c0b7146826fc | Vendor (CNA) |
| Linux Linux | ef4851d8324fd978ca1ff9ec76a275438f887743 | Vendor (CNA) |
| azl3 kernel 6.6.139.1-1 on Azure Linux 3.0 | 6.6.141.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| debian:linux | 6.1.176-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-default | 4.12.14-122.328.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | Package registry (OSV) |
| suse:kernel-source | 4.12.14-122.328.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS | Package registry (OSV) |
| suse:kernel-syms | 4.12.14-122.328.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP5_Update_87 | 1-8.5.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | Package 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 researchersFinders, 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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-26-0290 · Jun 2, 2026(Linux Kernel Güvenlik Bildirimi)
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
- none
- 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
- None
- Availability impact
- High
Weakness class (CWE)
CWE-787 · Out-of-bounds WriteCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- SSVC exploitation— → none
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (8 more)Show less
- git.kernel.org/stable/c/33698bd1b2db9764a29df7751533d33967ff5c98
- git.kernel.org/stable/c/406aa86394ead347c47428fb51b6359bdaa2257d
- git.kernel.org/stable/c/73ce72edd113374801045924d4417199963f73a3
- git.kernel.org/stable/c/b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9
- git.kernel.org/stable/c/c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e
- git.kernel.org/stable/c/c96c6f01d84b5c67db1bf1cc8591c0b7146826fc
- git.kernel.org/stable/c/ef4851d8324fd978ca1ff9ec76a275438f887743
- cert-portal.siemens.com/productcert/html/ssa-784472.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.