CVE-2026-43032

MEDIUM EPSS 2.4%
Published May 1, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 1, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: NFC: pn533: bound the UART receive buffer pn532_receive_buf() appends every incoming byte to dev->recv_skb and only resets the buffer after pn532_uart_rx_is_frame() recognizes a complete frame. A continuous stream of bytes without a valid PN532 frame header therefore keeps growing the skb until skb_put_u8() hits the tail limit. Drop the accumulated partial frame once the fixed receive buffer is full so malformed UART traffic cannot grow the skb past PN532_UART_SKB_BUFF_LEN.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 13

VendorProductVersionRange
linuxlinux_kernel*≥5.5  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.134
linuxlinux_kernel*≥6.7  –  <6.12.81
linuxlinux_kernel*≥6.13  –  <6.18.22
linuxlinux_kernel*≥6.19  –  <6.19.12
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/23e925183db26cd322597679669ad29d70ed2ada
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2c1fadd221b21d8038acfe6a0f56291881d5ff76
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/30fe3f5f6494f827d812ff179f295a8e532709d6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3adca9be14bf36b927193f05f5aea35a1a90e913
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8bedf1dd5640ac8997bff00bbefe241b438df397
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cf2ff10183204349edfd6b972e189375fc5f1fb0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f48ab6ee654ecc350434e4566bc785773f412b7e
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/23e925183db26cd322597679669ad29d70ed2ada
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2c1fadd221b21d8038acfe6a0f56291881d5ff76
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/30fe3f5f6494f827d812ff179f295a8e532709d6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3adca9be14bf36b927193f05f5aea35a1a90e913
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8bedf1dd5640ac8997bff00bbefe241b438df397
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cf2ff10183204349edfd6b972e189375fc5f1fb0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f48ab6ee654ecc350434e4566bc785773f412b7e
    Patch