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CVE-2023-53449

20
FAUCET Score

CVE-2023-53449 is a memory leak vulnerability in the Linux kernel's s390/dasd component, specifically within the dasd_eckd_init() function. This flaw, affecting Linux kernel versions, could lead to a denial of service due to resource exhaustion. Rated Medium with a CVSS score of 5.5, it requires local access and low privileges to exploit, but has no impact on confidentiality or integrity. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.3, < 5.4.235CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.173CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.99CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.2.3CPE 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
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
4.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 27th 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

Vendor Patches (2)

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-2023-53449Low

kernel: s390/dasd: Fix potential memleak in dasd_eckd_init()

Oct 1, 2025

References

git.kernel.org / stable/c/460e9bed82e49db1b823dcb4e421783854d86c40
Patch
git.kernel.org / stable/c/544a552be0869231799784279d52704c4d314d33
Patch
git.kernel.org / stable/c/a50e28d433acf22258f9f34831057387f04ef074
Patch
git.kernel.org / stable/c/aede5230d154b6b237985ec9df7ebbd1dce96810
Patch
git.kernel.org / stable/c/ee986d80acdef710a886be404308188ea11000c8
Patch
git.kernel.org / stable/c/ef3a7ffc0a6f833578bc8d1dcb79d0633c7e4ec3
Patch