Integer overflow in Red Hat Enterprise Linux 10
CVE-2025-4948
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Red Hat Enterprise Linux 10 — versions 0:3.6.5-3.el10_0.6
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7 Extended Lifecycle Support — versions 0:2.62.2-9.el7_9, 0:2.62.2-6.el7_9
- Red Hat Enterprise Linux 8 — versions 0:2.62.3-9.el8_10
- Red Hat Enterprise Linux 8.2 Advanced Update Support — versions 0:2.62.3-1.el8_2.5
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — versions 0:2.62.3-2.el8_4.5
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support — versions 0:2.62.3-2.el8_6.5
- Red Hat Enterprise Linux 8.6 Telecommunications Update Service — versions 0:2.62.3-2.el8_6.5
- Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions — versions 0:2.62.3-2.el8_6.5
- Red Hat Enterprise Linux 8.8 Extended Update Support — versions 0:2.62.3-3.el8_8.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2025:21657 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8126 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8128 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8132 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8139 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8140 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8252 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8480 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8481 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8482 (vendor-advisory)
Frequently asked questions
- What is CVE-2025-4948?
- CVE-2025-4948 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Integer Underflow. CVSS score: 7.5/10. Published 2025-05-19.
- How severe is CVE-2025-4948?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-4948 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.