7.5

CVE-2023-52340: linux linux_kernel Uncontrolled Resource Consumption

Modified
AliasesSUSE-SU-2024:1207-1SUSE-SU-2024:1273-1SUSE-SU-2024:1278-1
Published 05-07-2024Last modified 04-11-2025

Vulnerability summary

CVE-2023-52340 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in linux linux_kernel. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.9% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.94%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 71 · Related 65
DLA-3840-1DLA-3841-1RHSA-2023:2148RHSA-2023:2458RHSA-2024:2950RHSA-2024:3138

Timeline

  1. 05-07-2024
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

Description

The IPv6 implementation in the Linux kernel before 6.3 has a net/ipv6/route.c max_size threshold that can be consumed easily, e.g., leading to a denial of service (network is unreachable errors) when IPv6 packets are sent in a loop via a raw socket.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.94%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.94% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu106 products
  • linuxAll versions (No fix recorded) | < 5.4.0-176.196 | < 5.15.0-102.112
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1122.132 | < 5.15.0-1057.63
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Suse6 products
  • kernel-livepatch-SLE15-SP2_Update_45&distro=SUSE Linux Enterprise Live Patching 15 SP2< 4-150200.2.1
  • kernel-livepatch-SLE15-SP3_Update_41&distro=SUSE Linux Enterprise Live Patching 15 SP3< 4-150300.2.1
  • kernel-livepatch-SLE15-SP4_Update_23&distro=SUSE Linux Enterprise Live Patching 15 SP4< 2-150400.9.8.1
  • kernel-livepatch-SLE15-SP5_Update_10&distro=SUSE Linux Enterprise Live Patching 15 SP5< 2-150500.11.8.1
  • kernel-livepatch-SLE15-SP5-RT_Update_10&distro=SUSE Linux Enterprise Live Patching 15 SP5< 2-150500.11.8.1
Debian1 product
  • linux< 6.1.76-1 | < 6.3.7-1
Linux1 product

4 vendors · 114 products

References

21 links
Show all 21 references