8.2

CVE-2026-46037: linux Out-of-bounds Read

CVSS: 8.2v3.1HighModified
AliasesUBUNTU-CVE-2026-46037DEBIAN-CVE-2026-46037
Published 27-05-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-46037 is a high (CVSS 8.2) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.7% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v3.1 (CVE.org)
EPSS score
0.73%
0%100%
Low · +0.29 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 192 · Related 192
OPENSUSE-SU-2026:10954-1OPENSUSE-SU-2026:21388-1SUSE-SU-2026:22433-1SUSE-SU-2026:22436-1SUSE-SU-2026:22458-1SUSE-SU-2026:22460-1

Showing 100 of 192. Use Open JSON for the complete list.

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmp_pointers Extended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type. That value is outside the range covered by icmp_pointers[], which only describes the traditional ICMP types up to NR_ICMP_TYPES. Avoid consulting icmp_pointers[] for reply types outside that range, and use array_index_nospec() for the remaining in-range lookup. Normal ICMP replies keep their existing behavior unchanged.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.29 pp

From 0.44% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.73%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu147 products
  • linux< 5.15.0-186.196 | < 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1112.119 | < 6.8.0-1061.64 | All versions (No fix recorded) | < 7.0.0-1008.8
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99 | ≥ d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < 93df2af4f491de33827550b9d420f01808c0706b | ≥ d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < 92e7c209036dcc0e8ffdf806fdfd3645b263bea5 | ≥ d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < bc64a66e0b9ad937d3d49934242ee62b01ba9a94 | ≥ d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < c2178ff1c70ebfc2ab9651b230c58a34683db759 | ≥ d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1 | ≥ d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < 67bf002a2d7387a6312138210d0bd06e3cf4879b | 5.13
  • linux_kernel≥ 5.13, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
  • linux< 6.1.176-1 | < 6.12.86-1 | < 7.0.4-1

3 vendors · 150 products

References

48 links
Show all 48 references