VDB-303178 · CVE-2025-32053 · EUVD-2025-9621

GNOME libsoup sniff_feed_or_html/skip_insignificant_space heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in GNOME libsoup. The impacted element is the function sniff_feed_or_html/skip_insignificant_space. Executing a manipulation can lead to heap-based overflow. This vulnerability appears as CVE-2025-32053. There is no available exploit.

Detailsinfo

A vulnerability has been found in GNOME libsoup (affected version unknown) and classified as critical. This vulnerability affects the function sniff_feed_or_html/skip_insignificant_space. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A flaw was found in libsoup. A vulnerability in sniff_feed_or_html() and skip_insignificant_space() functions may lead to a heap buffer over-read.

The advisory is available at bugzilla.redhat.com. This vulnerability was named CVE-2025-32053 since 04/03/2025. The exploitation appears to be easy. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/04/2026).

The vulnerability scanner Nessus provides a plugin with the ID 234139 (Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : libsoup vulnerabilities (USN-7432-1)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (234139), EUVD (EUVD-2025-9621) and CERT Bund (WID-SEC-2025-0935). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

Amazon Linux 2
Red Hat Enterprise Linux
Fedora Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
IGEL OS
IBM Power Hardware Management Console
SUSE openSUSE
Xerox FreeFlow Print Server

Productinfo

Vendor

GNOME

Name

libsoup

License

open-source

Website

Vendor: https://www.gnome.org/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 234139
Nessus Name: Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : libsoup vulnerabilities (USN-7432-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/03/2025 🔍
04/03/2025 +0 days 🔍
04/03/2025 +0 days 🔍
01/04/2026 +276 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2025-32053 (🔍)
GCVE (CVE): GCVE-0-2025-32053
GCVE (VulDB): GCVE-100-303178
EUVD: 🔍
CERT Bund: WID-SEC-2025-0935 - Red Hat Enterprise Linux (libsoup): Mehrere Schwachstellen

Entryinfo

Created: 04/03/2025 15:42
Updated: 01/04/2026 19:51
Changes: 04/03/2025 15:42 (50), 04/11/2025 16:11 (2), 05/05/2025 05:49 (13), 09/25/2025 21:41 (1), 01/04/2026 19:51 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.