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CVE-2023-53372

24
FAUCET Score

CVE-2023-53372 is a Linux kernel vulnerability affecting the Stream Control Transmission Protocol (SCTP) implementation, specifically a potential overflow in the sctp_ifwdtsn_skip function. This flaw, rated High severity with a CVSS score of 7.8, could lead to local privilege escalation (C:H, I:H, A:H) due to improper bounds checking during data processing. While the vulnerability has a high FAUCET Risk Score of 74/100, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.16, < 4.19.281CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.241CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.178CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.108CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.25CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
5.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 23rd percentile among its peer group of 17,070 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

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

Vendor Advisories (1)

redhatCVE-2023-53372Low

kernel: sctp: fix a potential overflow in sctp_ifwdtsn_skip

Sep 18, 2025

References

git.kernel.org / stable/c/32832a2caf82663870126c5186cf8f86c8b2a649
Patch
git.kernel.org / stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4
Patch
git.kernel.org / stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57
Patch
git.kernel.org / stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f
Patch
git.kernel.org / stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5
Patch
git.kernel.org / stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7
Patch
git.kernel.org / stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73
Patch