CVE-2025-4207

PostgreSQL GB18030 encoding validation can read one byte past end of allocation for text that fails validation

Description

Buffer over-read in PostgreSQL GB18030 encoding validation allows a database input provider to achieve temporary denial of service on platforms where a 1-byte over-read can elicit process termination. This affects the database server and also libpq. Versions before PostgreSQL 17.5, 16.9, 15.13, 14.18, and 13.21 are affected.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Affected: n/a PostgreSQL
Published at:
Updated at:

References

Link Tags
https://www.postgresql.org/support/security/CVE-2025-4207/
http://www.openwall.com/lists/oss-security/2025/05/09/3
https://lists.debian.org/debian-lts-announce/2025/05/msg00011.html

Frequently Asked Questions

What is the severity of CVE-2025-4207?
CVE-2025-4207 has been scored as a medium severity vulnerability.
How to fix CVE-2025-4207?
To fix CVE-2025-4207, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-4207 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-4207 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-4207?
CVE-2025-4207 affects n/a PostgreSQL.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.