CVE-2025-32914 – CVE-2025-32914 is an out-of-bounds read vulnera... (How to Fix)

Q: What is the severity of CVE-2025-32914?

CVE-2025-32914 has a CVSS score of 7.4 (HIGH). CVE-2025-32914 is an out-of-bounds read vulnerability in libsoup's soup_multipart_new_from_message() function. It allows malicious HTTP clients to cause a libsoup server to read memory beyond allocated boundaries, potentially exposing sensitive information. This affects systems using vulnerable versions of libsoup for HTTP server functionality.

📋 TL;DR

CVE-2025-32914 is an out-of-bounds read vulnerability in libsoup's soup_multipart_new_from_message() function. It allows malicious HTTP clients to cause a libsoup server to read memory beyond allocated boundaries, potentially exposing sensitive information. This affects systems using vulnerable versions of libsoup for HTTP server functionality.

💻 Affected Systems

Products:

libsoup

Versions: Specific versions not detailed in references; check Red Hat advisories for affected ranges.

Operating Systems: Linux distributions including Red Hat Enterprise Linux and derivatives

Default Config Vulnerable: ⚠️ Yes

Notes: Affects systems where libsoup is used as an HTTP server component; client usage may also be vulnerable depending on implementation.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:

Review the CVE details at NVD
Check vendor security advisories for your specific version
Test if the vulnerability is exploitable in your environment
Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Information disclosure leading to exposure of sensitive server memory contents, including credentials, session tokens, or other application data.

🟠

Likely Case

Server crashes or instability due to invalid memory reads, causing denial of service.

🟢

If Mitigated

Limited impact with proper network segmentation and input validation, though information disclosure risk remains.

🌐 Internet-Facing: HIGH - HTTP servers exposed to untrusted clients are directly vulnerable to exploitation.

🏢 Internal Only: MEDIUM - Internal services using libsoup could be exploited by compromised internal clients.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploitation requires sending crafted HTTP requests to a vulnerable server; no authentication needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Red Hat advisories for specific patched versions (e.g., via RHSA-2025:21657).

Vendor Advisory: https://access.redhat.com/errata/RHSA-2025:21657

Restart Required: Yes

Instructions:

1. Update libsoup package using system package manager (e.g., 'yum update libsoup' on RHEL). 2. Restart affected services or the system to apply changes.

🔧 Temporary Workarounds

Network Filtering

all

Block or restrict HTTP requests to vulnerable servers using firewalls or web application firewalls.

🧯 If You Can't Patch

Isolate vulnerable systems in segmented network zones to limit exposure.
Implement strict input validation and sanitization for HTTP requests in applications using libsoup.

🔍 How to Verify

Check if Vulnerable:

Check libsoup version against Red Hat advisories; e.g., 'rpm -q libsoup' on RHEL systems.

Check Version:

rpm -q libsoup || dpkg -l | grep libsoup

Verify Fix Applied:

Verify updated libsoup version matches patched release from vendor advisory.

📡 Detection & Monitoring

Log Indicators:

Unusual HTTP request patterns or server crashes in application logs.

Network Indicators:

Crafted HTTP requests targeting multipart message handling.

SIEM Query:

Search for HTTP requests with abnormal Content-Type headers or multipart boundaries.

📊 Metadata

CVE ID: CVE-2025-32914

CVSS v3 Score: 7.4 (HIGH)

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

CWE: CWE-125

EPSS Score: 0.52% exploit probability (66.3th percentile)

Published: April 14, 2025

Last Updated: November 18, 2025

🔗 References

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