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CVE-2023-52676

17
FAUCET Score

CVE-2023-52676 is a medium-severity vulnerability in the Linux kernel's BPF component, specifically related to improper handling of stack limits. The flaw, categorized as CWE-190 (Integer Overflow or Wraparound), arises from 32-bit arithmetic operations used for stack bound checks, which could overflow when combining a 64-bit register with certain offsets. This local vulnerability (AV:L) has low attack complexity (AC:L) and requires low privileges (PR:L), potentially leading to high availability impact (A:H) by causing system crashes. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.10.33, < 5.11CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11.17, < 5.12CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.10.33, < 5.11CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11.17, < 6.6.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.7.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
13.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 60th percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-503.11.1.el9_5
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (2)

redhatCVE-2023-52676Low

kernel: bpf: Guard stack limits against 32bit overflow

May 17, 2024
microsoft2024-May/CVE-2023-52676Moderate

bpf: Guard stack limits against 32bit overflow

May 14, 2024

References

git.kernel.org / stable/c/1d38a9ee81570c4bd61f557832dead4d6f816760
Patch
git.kernel.org / stable/c/ad140fc856f0b1d5e2215bcb6d0cc247a86805a2
Patch
git.kernel.org / stable/c/e5ad9ecb84405637df82732ee02ad741a5f782a6
Patch