CVE-2025-11021

HIGH 7.5

Libsoup: out-of-bounds read in cookie date handling of libsoup http library

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

A flaw was found in the cookie date handling logic of the libsoup HTTP library, widely used by GNOME and other applications for web communication. When processing cookies with specially crafted expiration dates, the library may perform an out-of-bounds memory read. This flaw could result in unintended disclosure of memory contents, potentially exposing sensitive information from the process using libsoup.

CWE	CWE-125
Published	Sep 26, 2025
Last Updated	Mar 19, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

Red Hat / Red Hat Enterprise Linux 10

All versions affected

Red Hat / Red Hat Enterprise Linux 10

All versions affected

Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

All versions affected

Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8.6 Telecommunications Update Service

All versions affected

Red Hat / Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions

All versions affected

Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

All versions affected

Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

All versions affected

Red Hat / Red Hat Enterprise Linux 9.4 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 6

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗