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CVE-2025-4207— PostgreSQL GB18030 encoding validation can read one byte past end of allocation for text that fails validation

Quick assessment

Affected
n/a PostgreSQL
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PostgreSQL是PostgreSQL组织的一套自由的对象关系型数据库管理系统。该系统支持大部分SQL标准并且提供了许多其他特性，例如外键、触发器、视图等。 PostgreSQL存在安全漏洞，该漏洞源于GB18030编码验证中的缓冲区过度读取，可能导致临时拒绝服务。以下版本受到影响：17.5之前版本、16.9之前版本、15.13之前版本、14.18之前版本和13.21之前版本。

CVSS 5.9 · Medium EPSS 0.73% · P51
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I. Basic Information for CVE-2025-4207

Vulnerability Information
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Vulnerability Title
PostgreSQL GB18030 encoding validation can read one byte past end of allocation for text that fails validation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区上溢读取
Source: CVE Program / CVE List V5
Vulnerability Title
PostgreSQL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PostgreSQL是PostgreSQL组织的一套自由的对象关系型数据库管理系统。该系统支持大部分SQL标准并且提供了许多其他特性，例如外键、触发器、视图等。 PostgreSQL存在安全漏洞，该漏洞源于GB18030编码验证中的缓冲区过度读取，可能导致临时拒绝服务。以下版本受到影响：17.5之前版本、16.9之前版本、15.13之前版本、14.18之前版本和13.21之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- PostgreSQL 17 ~ 17.5 -

II. Public POCs for CVE-2025-4207

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III. Intelligence Information for CVE-2025-4207

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Same Patch Batch · n/a · 2025-05-08 · 28 CVEs total

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CVE-2025-45798 TOTOLINK A950RG 安全漏洞
CVE-2025-45787 TOTOLINK A3100R 安全漏洞
CVE-2025-45789 TOTOLINK A3100R 安全漏洞
CVE-2025-45790 TOTOLINK A3100R 安全漏洞
CVE-2025-45788 TOTOLINK A3100R 安全漏洞
CVE-2025-44023 D-Link DNS-320 安全漏洞
CVE-2025-28073 phpList 安全漏洞
CVE-2025-26845 Znuny 安全漏洞
CVE-2025-26847 Znuny 安全漏洞
CVE-2025-26844 Znuny 安全漏洞
CVE-2025-45820 SLiMS 9 Bulian 安全漏洞
CVE-2025-43926 Znuny 安全漏洞
CVE-2025-45845 TOTOLINK NR1800X 安全漏洞
CVE-2025-45846 ALFA AIP-W512 安全漏洞
CVE-2025-45843 TOTOLINK NR1800X 安全漏洞
CVE-2025-45847 ALFA AIP-W512 安全漏洞

Showing top 20 of 28 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: PostgreSQL
Same vendor: n/a
Same weakness: CWE-126

V. Comments for CVE-2025-4207

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