7.1

CVE-2023-3268: debian debian_linux Out-of-bounds Read

CVSS: 7.1v3.1HighModified
AliasesUBUNTU-CVE-2023-3268DEBIAN-CVE-2023-3268
Published 16-06-2023Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2023-3268 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 42.7% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.52%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 38 · Duplicates 1 · Related 26
DLA-3508-1DLA-3623-1DSA-5448-1DSA-5480-1MGASA-2023-0201MGASA-2023-0202

Timeline

  1. 16-06-2023
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

+0.04 pp

From 0.48% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.52%

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

Ubuntu103 products
  • linuxAll versions (No fix recorded) | < 4.4.0-243.277 | < 4.15.0-214.225 | < 5.4.0-162.179 | < 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1121.127 | < 4.4.0-1159.174 | < 4.15.0-1159.172 | < 5.4.0-1109.118 | < 5.15.0-1042.47
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.37-1 | < 6.3.7-1
  • debian_linuxEOL10.0 | 11.0 | 12.0
Linux2 products
  • kernel≥ 2.6.22, < 4.19.283 | ≥ 4.20, < 5.4.243 | ≥ 5.5, < 5.10.180 | ≥ 5.11, < 5.15.111 | ≥ 5.16, < 6.1.28 | ≥ 6.2, < 6.2.15 | ≥ 6.3, < 6.3.2
  • linux_kernel≥ 2.6.22, < 4.19.283 | ≥ 4.20, < 5.4.243 | ≥ 5.5, < 5.10.180 | ≥ 5.11, < 5.15.111 | ≥ 5.16, < 6.1.28 | ≥ 6.2, < 6.2.15 | ≥ 6.3, < 6.3.2

3 vendors · 107 products

References

28 links
Show all 28 references