HOMEVULNERABILITIESCVE-2026-31743
HIGH

CVE-2026-31743

Published: May 1, 2026· Updated: May 7, 2026

7.8
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:2.7th

Official Description

In the Linux kernel, the following vulnerability has been resolved:

nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy

Buffer size used in dma allocation and memcpy is wrong.

It can lead to undersized DMA buffer access and possible

memory corruption. use correct buffer size in dma_alloc_coherent

and memcpy.

NVD Source

Technical Analysis

CVE-2026-31743 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Linux1 product
linux kernel
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://git.kernel.org/stable/c/2f6e5b9964d0a63a5ba84fca2642876afb70a662
PATCHhttps://git.kernel.org/stable/c/6c01e7f11f5e5f22285d19510a9643e2506e13c3
PATCHhttps://git.kernel.org/stable/c/784ed4abded1ca4b525fa4cade8b02f8c5d2a087
PATCHhttps://git.kernel.org/stable/c/f9b88613ff402aa6fe8fd020573cb95867ae947e

All References (4)

→
https://git.kernel.org/stable/c/2f6e5b9964d0a63a5ba84fca2642876afb70a662Patch
→
https://git.kernel.org/stable/c/6c01e7f11f5e5f22285d19510a9643e2506e13c3Patch
→
https://git.kernel.org/stable/c/784ed4abded1ca4b525fa4cade8b02f8c5d2a087Patch
→
https://git.kernel.org/stable/c/f9b88613ff402aa6fe8fd020573cb95867ae947ePatch

Quick Facts

CVE IDCVE-2026-31743
CVSS Score7.8 / 10
SeverityHIGH
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedMay 1, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-31743 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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