01 Record

CVE-2023-3268

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

HighPUBLISHEDCNA: redhat

CNA base score7.1 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

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02 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

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.48% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 39.4% of scored records. A rank, not a probability.

NVD base score

7.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-01.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2023-06-16 00:00Z3 YR AGO

Last updated

2026-08-24 14:27Z11 DAYS AGO

Reserved

2023-06-15

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weaknesses

CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

e795fa92a0f5c2472355360bfcbca89a3171c1b8e6bd86f8927c14eeab2d610f

05 Affected products

VendorProductVersionsPlatforms

Linuxkernel2.6.22 to < 4.19.283, 4.20 to < 5.4.243, 5.5 to < 5.10.180, 5.11 to < 5.15.111, 5.16 to < 6.1.28, 6.2 to < 6.2.15, 6.3 to < 6.3.2—

06 References

lore.kernel.orghttps://lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc%40wangsu.com/T/
cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2
www.debian.orgDSA-5448https://www.debian.org/security/2023/dsa-5448vendor-advisory
lists.debian.org[debian-lts-announce] 20230727 [SECURITY] [DLA 3508-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlmailing-list
git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43ec16f1450f4936025a9bdf1a273affdb9732c1
www.debian.orgDSA-5480https://www.debian.org/security/2023/dsa-5480vendor-advisory
security.netapp.comhttps://security.netapp.com/advisory/ntap-20230824-0006/
lists.debian.org[debian-lts-announce] 20231019 [SECURITY] [DLA 3623-1] linux-5.10 security updatehttps://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlmailing-list

01 Record index

CVE-2023-3268

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-3268

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References