Is CVE-2023-52804 in the CISA KEV catalog?

No. CVE-2023-52804 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-52804?

CVE-2023-52804 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-52804?

CVE-2023-52804 has an EPSS score of 0.26% (17th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-52804?

Upgrade linux on debian 11 to 5.10.205-1 or later.

CVE & CISA-KEV Catalog

CVE-2023-52804

HIGH

7.8

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add validity check for db_maxag and db_agpref Both db_maxag and db_agpref are used as the index of the db_agfree array, but there is currently no validity check for db_maxag and db_agpref, which can lead to errors. The following is related bug reported by Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 index 7936 is out of range for type 'atomic_t[128]' Add checking that the values of db_maxag and db_agpref are valid indexes for the db_agfree array.

CWE-129

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.205-1CVE-2023-52804

Fixed in:6.1.64-1CVE-2023-52804

Fixed in:6.6.8-1CVE-2023-52804

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.26%probability of exploitation in 30 days

17thpercentile

Low risk: more likely to be exploited than 17% of all known CVEs.

References

Patch9

Related Vulnerabilities

Other CWE-129 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-35592	Medium	6.3	51%	-	Fix
CVE-2021-35598	Medium	6.3	50%	-	Fix
CVE-2021-35594	Medium	6.3	50%	-	Fix
CVE-2022-35737	High	7.5	19%	-	Fix
CVE-2014-6317	High	7.1	18%	-	-
CVE-2023-40477	High	7.8	13%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-23.