Application crash via unchecked URI serialization failure
Published Apr 3, 2025 · Updated Jun 30, 2026
NULL-pointer dereference in GNOME libsoup before 3.6.1 allows remote attackers to crash an application via a malformed data URI. soup_uri_decode_data_uri accepts a failed g_uri_to_string result and performs pointer arithmetic on the resulting NULL pointer. A consuming application must pass attacker-controlled data URIs to the function; the consequence is limited to termination of that process.
Summary
What happened
NULL-pointer dereference in GNOME libsoup before 3.6.1 allows remote attackers to crash an application via a malformed data URI. soup_uri_decode_data_uri accepts a failed g_uri_to_string result and performs pointer arithmetic on the resulting NULL pointer. A consuming application must pass attacker-controlled data URIs to the function; the consequence is limited to termination of that process.
The record
- CVE
- CVE-2025-32051
- Published
- Apr 3, 2025
- Updated
- Jun 30, 2026
- Vendor
- GNOME
- Product
- libsoup
- Classifications
- CWE-476, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 3, 2025CVE publishedPublication date reported by the CVE source.
- Jun 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <3.6.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Malformed data URI crash payloadsproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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