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CVE-2025-4948

24
FAUCET Score

CVE-2025-4948 is a denial-of-service vulnerability in the libsoup HTTP library, affecting applications that process specially crafted multipart messages. An integer underflow during message processing can lead to invalid memory access and application crashes. Rated 7.5 HIGH, this vulnerability can be exploited remotely with low complexity and no user interaction, resulting in a complete loss of availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion beyond a single mention on GitHub.

Impacted Technologies

VendorProductVersion(s)CPE
Red HatRed Hat Enterprise Linux 8
Range not provided by sourceCNA affecteddefault affected
Red HatRed Hat Enterprise Linux 9
Range not provided by sourceCNA affecteddefault affected
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support
Range not provided by sourceCNA affecteddefault affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Range not provided by sourceCNA affecteddefault affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Range not provided by sourceCNA affecteddefault affected

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 25th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (25)

autodeskpatch availablevia llm_extracted
View patch
freepbxpatch availablevia llm_extracted
View patch
honeywellpatch availablevia llm_extracted
View patch
microsoftpatch availablevia msrc
Product: 19617-17084Fixed in: 3.4.4-8
microsoftpatch availablevia msrc
Product: 19596-17084Fixed in: 3.4.4-8
microsoftpatch availablevia msrc
Product: 20186-17086Fixed in: 3.0.4-8
microsoftpatch availablevia msrc
Product: 19568-16823Fixed in: 3.0.4-8
microsoftpatch availablevia msrc
Product: cbl2 libsoup 3.0.4-8 on CBL Mariner 2.0Fixed in: 3.0.4-8
microsoftpatch availablevia msrc
Product: cbl2 libsoup 3.0.4-7 on CBL Mariner 2.0Fixed in: 3.0.4-8
microsoftpatch availablevia msrc
Product: azl3 libsoup 3.4.4-8 on Azure Linux 3.0Fixed in: 3.4.4-8
microsoftpatch availablevia msrc
Product: azl3 libsoup 3.4.4-7 on Azure Linux 3.0Fixed in: 3.4.4-8
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsFixed in: libsoup-0:2.72.0-8.el9_0.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: libsoup3-0:3.6.5-3.el10_0.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.4 Extended Update SupportFixed in: libsoup-0:2.72.0-8.el9_4.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: libsoup-0:2.72.0-8.el9_2.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7 Extended Lifecycle SupportFixed in: libsoup-0:2.62.2-9.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7 Extended Lifecycle SupportFixed in: libsoup-0:2.62.2-6.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libsoup-0:2.62.3-9.el8_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: libsoup-0:2.62.3-1.el8_2.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: libsoup-0:2.62.3-2.el8_4.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportFixed in: libsoup-0:2.62.3-2.el8_6.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceFixed in: libsoup-0:2.62.3-2.el8_6.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsFixed in: libsoup-0:2.62.3-2.el8_6.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: libsoup-0:2.62.3-3.el8_8.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: libsoup-0:2.72.0-10.el9_6.2
View patch

Vendor Advisories (5)

honeywellllm-honeywell-c82b5cfda9df97a3CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
autodeskllm-autodesk-c365b674a2ff5a3aCRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
freepbxllm-freepbx-e54908c7967265f6CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
redhatCVE-2025-4948Important

libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in libsoup

May 19, 2025
microsoft2025-May/CVE-2025-4948Important

Libsoup: integer underflow in soup_multipart_new_from_message() leading to denial of service in libsoup

May 13, 2025

References

gitlab.gnome.org / GNOME/libsoup/-/work_items/449
access.redhat.com / errata/RHSA-2025:21657
access.redhat.com / errata/RHSA-2025:8126
access.redhat.com / errata/RHSA-2025:8128
access.redhat.com / errata/RHSA-2025:8132
access.redhat.com / errata/RHSA-2025:8139
access.redhat.com / errata/RHSA-2025:8140
access.redhat.com / errata/RHSA-2025:8252
access.redhat.com / errata/RHSA-2025:8480
access.redhat.com / errata/RHSA-2025:8481
access.redhat.com / errata/RHSA-2025:8482
access.redhat.com / errata/RHSA-2025:8663
access.redhat.com / errata/RHSA-2025:9179
access.redhat.com / security/cve/CVE-2025-4948
bugzilla.redhat.com / show_bug.cgi
gitlab.gnome.org / GNOME/libsoup/-/issues/449