Out-of-Bounds Memory Read Vulnerability in libsoup Used by GNOME
CVE-2025-11021

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
26 September 2025

What is CVE-2025-11021?

A flaw exists in the cookie date handling logic within the libsoup HTTP library, which is utilized by various applications, including those in the GNOME ecosystem. This flaw arises when the library processes cookies with specially crafted expiration dates, resulting in an out-of-bounds memory read. Consequently, this could unintentionally disclose memory contents, posing a risk that sensitive information from processes utilizing libsoup may be exposed.

References

https://access.redhat.com/security/cve/CVE-2025-11021
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2399627
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-11021 : Out-of-Bounds Memory Read Vulnerability in libsoup Used by GNOME