AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2023-31436

HIGH · CVSS 7.8 EPSS 0.59% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-04-28 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗
External Security References
packetstormsecurity.com ↗ packetstormsecurity.com ↗ packetstormsecurity.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-31436
Severity
HIGH
CVSS
7.8
EPSS
0.59%
Linux

Original NVD Description

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.