CVE-2026-31518

MEDIUM EPSS 2.4%
Published Apr 22, 20262mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: esp: fix skb leak with espintcp and async crypto When the TX queue for espintcp is full, esp_output_tail_tcp will return an error and not free the skb, because with synchronous crypto, the common xfrm output code will drop the packet for us. With async crypto (esp_output_done), we need to drop the skb when esp_output_tail_tcp returns an error.

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

Weaknesses 1

CWE-401

Affected Products 14

VendorProductVersionRange
linuxlinux_kernel*≥5.6  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.131
linuxlinux_kernel*≥6.7  –  <6.12.80
linuxlinux_kernel*≥6.13  –  <6.18.21
linuxlinux_kernel*≥6.19  –  <6.19.11
linuxlinux_kernel7.0any
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/0c0eef8ccd2413b0a10eb6bbd3442333b1e64dd2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/41aafca57de4a4c026701622bd4648f112a9edcd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4820847e036ff1035b01b69ad68dfc17e7028fe9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a3ec6efbc4f90e0ccb2e71574f07351f19996f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6aa9841d917532d0f2d932d1ff2f3a94305aaf47
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/88d386243ed374ac969dabd3bbc1409a31d81818
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aca3ad0c262f54a5b5c95dda80a48365997d1224
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/df6f995358dc1f3c42484f5cfe241d7bd3e1cd15
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0c0eef8ccd2413b0a10eb6bbd3442333b1e64dd2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/41aafca57de4a4c026701622bd4648f112a9edcd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4820847e036ff1035b01b69ad68dfc17e7028fe9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a3ec6efbc4f90e0ccb2e71574f07351f19996f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6aa9841d917532d0f2d932d1ff2f3a94305aaf47
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/88d386243ed374ac969dabd3bbc1409a31d81818
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aca3ad0c262f54a5b5c95dda80a48365997d1224
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/df6f995358dc1f3c42484f5cfe241d7bd3e1cd15
    Patch