Strix
26.1K

CVE-2025-6021

HIGHCVSS 7.5/10EPSS 1.07%

Last modified

CVE-2025-6021 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.. EPSS estimates a 1.07% chance of exploitation in the next 30 days.

Description

A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
1.07%

60.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
XmlsoftLibxml2< 2.14.4
RedhatJboss Core ServicesAll versions
RedhatOpenshift Container Platform4.12
RedhatOpenshift Container Platform4.13
RedhatOpenshift Container Platform4.14
RedhatOpenshift Container Platform4.15
RedhatOpenshift Container Platform4.16
RedhatOpenshift Container Platform4.17
RedhatOpenshift Container Platform4.18
RedhatOpenshift Container Platform For Arm644.13
RedhatOpenshift Container Platform For Arm644.14
RedhatOpenshift Container Platform For Arm644.15
RedhatOpenshift Container Platform For Arm644.16
RedhatOpenshift Container Platform For Arm644.17
RedhatOpenshift Container Platform For Arm644.18
RedhatOpenshift Container Platform For Ibm Z4.13
RedhatOpenshift Container Platform For Ibm Z4.14
RedhatOpenshift Container Platform For Ibm Z4.15
RedhatOpenshift Container Platform For Ibm Z4.16
RedhatOpenshift Container Platform For Ibm Z4.17
RedhatOpenshift Container Platform For Ibm Z4.18
RedhatOpenshift Container Platform For Linuxone4.13
RedhatOpenshift Container Platform For Linuxone4.14
RedhatOpenshift Container Platform For Linuxone4.15
RedhatOpenshift Container Platform For Linuxone4.16
RedhatOpenshift Container Platform For Linuxone4.17
RedhatOpenshift Container Platform For Linuxone4.18
RedhatOpenshift Container Platform For Power4.13
RedhatOpenshift Container Platform For Power4.14
RedhatOpenshift Container Platform For Power4.15
RedhatOpenshift Container Platform For Power4.16
RedhatOpenshift Container Platform For Power4.17
RedhatOpenshift Container Platform For Power4.18
RedhatEnterprise Linux8.0
RedhatEnterprise Linux9.0
RedhatEnterprise Linux10.0
RedhatEnterprise Linux Eus8.4
RedhatEnterprise Linux Eus8.6
RedhatEnterprise Linux Eus8.8
RedhatEnterprise Linux Eus9.4
RedhatEnterprise Linux Eus9.6
RedhatEnterprise Linux Eus10.0
RedhatEnterprise Linux For Arm 648.0_aarch64
RedhatEnterprise Linux For Arm 649.0_aarch64
RedhatEnterprise Linux For Arm 649.4_aarch64
RedhatEnterprise Linux For Arm 6410.0_aarch64
RedhatEnterprise Linux For Arm 64 Eus9.4_aarch64
RedhatEnterprise Linux For Arm 64 Eus9.6_aarch64
RedhatEnterprise Linux For Arm 64 Eus10.0_aarch64
RedhatEnterprise Linux For Ibm Z Systems8.0_s390x

Showing 50 of 72 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2025-6021?
A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.
How severe is CVE-2025-6021?
CVE-2025-6021 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.
How do I fix CVE-2025-6021?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-6021?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST