Process crash via signed parser-index wraparound
Published Dec 10, 2025 · Updated Aug 25, 2026
Integer overflow in GLib before 2.86.3 allows remote attackers to corrupt heap memory by supplying a crafted GVariant text string. In bytestring_parse() and string_parse(), signed 32-bit loop indexes wrap negative on extremely large input and drive str[j++] before the allocated buffer. Exposure requires an application to pass untrusted data to g_variant_parse(); successful exploitation crashes that process or executes code.
Summary
What happened
Integer overflow in GLib before 2.86.3 allows remote attackers to corrupt heap memory by supplying a crafted GVariant text string. In bytestring_parse() and string_parse(), signed 32-bit loop indexes wrap negative on extremely large input and drive str[j++] before the allocated buffer. Exposure requires an application to pass untrusted data to g_variant_parse(); successful exploitation crashes that process or executes code.
The record
- CVE
- CVE-2025-14087
- Published
- Dec 10, 2025
- Updated
- Aug 25, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
- Classifications
- CWE-190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 10, 2025CVE publishedPublication date reported by the CVE source.
- Aug 25, 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?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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