CVE-2025-49487.5HighCWE-191

CVE-2025-4948: Libsoup: integer underflow in soup_multipart_new_from_message() leading to denial of service in libsoup

Redhat · libsoup

Vendor fix available · Affected: Redhat libsoup · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.1%probability of exploitation in the next 30 days

66th percentile

050100

Higher than 66% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

A flaw was found in the soup_multipart_new_from_message() function of the libsoup HTTP library, which is commonly used by GNOME and other applications to handle web communications. The issue occurs when the library processes specially crafted multipart messages. Due to improper validation, an internal calculation can go wrong, leading to an integer underflow. This can cause the program to access invalid memory and crash. As a result, any application or server using libsoup could be forced to exit unexpectedly, creating a denial-of-service (DoS) risk.

Affected products16

From the CVE record. A product or version that is not listed is unknown, not unaffected.

libsoupup to and including 3.6.5
Red Hat · Red Hat Enterprise Linux 10Versions not stated
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle SupportVersions not stated
Red Hat · Red Hat Enterprise Linux 8Versions not stated
Red Hat · Red Hat Enterprise Linux 8Versions not stated
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update SupportVersions not stated
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportVersions not stated
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportVersions not stated
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceVersions not stated
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsVersions not stated
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update SupportVersions not stated
Red Hat · Red Hat Enterprise Linux 9Versions not stated
Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsVersions not stated
Red Hat · Red Hat Enterprise Linux 9.2 Extended Update SupportVersions not stated
Red Hat · Red Hat Enterprise Linux 9.4 Extended Update SupportVersions not stated
Red Hat · Red Hat Enterprise Linux 6Versions not stated

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Integer Underflow (Wrap or Wraparound) · Memory Corruption
Vendor: Redhat
Published: May 2025
Band: Possible (1 to 10%), May 2025

CoverageNo articles yet

No CyberSIXT article names CVE-2025-4948 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

3 more references are in the CVE record.