Is CVE-2025-6269 in the CISA KEV catalog?

No. CVE-2025-6269 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-6269?

CVE-2025-6269 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2025-6269?

CVE-2025-6269 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-6269?

Upgrade hdf5 on rocky 9 to 0:1.14.6-6.el9ai or later. Fixes are available for 18 affected products.

CVE & CISA-KEV Catalog

CVE-2025-6269

MEDIUM

5.3

CVSS v3

NVD

Description

A vulnerability classified as critical was found in HDF5 up to 1.14.6. Affected by this vulnerability is the function H5C__reconstruct_cache_entry of the file H5Cimage.c. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

CWE-119Buffer Overflow CWE-122Heap-based Buffer Overflow

How to fix

Remediation Available

hdf5Rocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5Red Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-debuginfoRocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-debuginfoRed Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-debugsourceRocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-debugsourceRed Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-develRed Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-develRocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-openmpiRocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-openmpiRed Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-openmpi-debuginfoRocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-openmpi-debuginfoRed Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-openmpi-develRed Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-openmpi-develRocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-openmpi-staticRocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-openmpi-staticRed Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-staticRocky

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

hdf5-staticRed Hat / RHEL

Fixed in:0:1.14.6-6.el9aiRHSA-2025:23731

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

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Exploit2

Third-Party Advisory3

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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 2026-04-29.