CVE-2023-45871

22

FAUCET Score

CVE-2023-45871 is a high-severity buffer size inadequacy vulnerability affecting the IGB driver in the Linux kernel, specifically versions prior to 6.5.3, impacting Debian Linux distributions. An attacker on the adjacent network could exploit this with high complexity, potentially leading to high confidentiality, integrity, and availability impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 3.4, < 4.14.326CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 4.15, < 4.19.295CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 4.20, < 5.4.257CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 5.5, < 5.10.195CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 5.11, < 5.15.132CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

1.6

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.54%

Probability of exploitation in next 30 days

EPSS Percentile

42.5%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0054 is in the 50th percentile among its peer group of 239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (33)

microsoftpatch availablevia msrc

Product: cbl2 kernel 5.15.135.1-2 on CBL Mariner 2.0Fixed in: 5.15.135.1-2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-1160.114.2.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7.6 Advanced Update Support(Disable again in 2026 - SPRHEL-7118)Fixed in: kernel-0:3.10.0-957.111.1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7.7 Advanced Update SupportFixed in: kernel-0:3.10.0-1062.85.1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-513.18.1.rt7.320.el8_9

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-513.18.1.el8_9

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: kernel-0:4.18.0-193.128.1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: kernel-rt-0:4.18.0-193.128.1.rt13.179.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: kernel-0:4.18.0-193.128.1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: kernel-0:4.18.0-193.128.1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: kernel-0:4.18.0-305.120.1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: kernel-rt-0:4.18.0-305.120.1.rt7.196.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: kernel-0:4.18.0-305.120.1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1160.114.2.rt56.1266.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: kernel-0:4.18.0-372.87.1.el8_6

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: kernel-0:4.18.0-477.43.1.el8_8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-362.13.1.el9_3

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9Fixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: kernel-0:5.14.0-70.85.1.el9_0

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: kernel-rt-0:5.14.0-70.85.1.rt21.156.el9_0

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: kernel-0:5.14.0-284.48.1.el9_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: kpatch-patch

redhatpatch availablevia redhat_api

Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-372.87.1.el8_6

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: kernel-0:4.18.0-305.120.1.el8_4

redhatno patchvia redhat_api

Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (2)

microsoft2023-Oct/CVE-2023-45871Important

An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel before 6.5.3. A buffer size may not be adequate for frames larger than the MTU.

redhatCVE-2023-45871Important

kernel: IGB driver inadequate buffer size for frames larger than MTU

References

cdn.kernel.org / pub/linux/kernel/v6.x/ChangeLog-6.5.3

Release Notes

git.kernel.org / pub/scm/linux/kernel/git/stable/linux.git/commit

Mailing ListPatch

lists.debian.org / debian-lts-announce/2024/01/msg00004.html

Mailing ListThird Party Advisory

security.netapp.com / advisory/ntap-20231110-0001

Third Party Advisory