CVE-2026-6477 PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory

Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets, PQfn..., resultisint=0, ... stores arbitrary-lengt...

CVE-2026-6477

Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets, PQfn..., resultisint=0, ... stores arbitrary-lengt...

CVE-2026-6477

Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets, PQfn..., resultisint=0, ... stores arbitrary-lengt...

PT-2026-40922

Name of the Vulnerable Software and Affected Versions PostgreSQL versions prior to 18.4 PostgreSQL versions prior to 17.10 PostgreSQL versions prior to 16.14 PostgreSQL versions prior to 15.18 PostgreSQL versions prior to 14.23 Description The use of the dangerous function PQfn..., result is int=...

PostgreSQL 安全漏洞

PostgreSQL is a set of free object-relational database management systems developed by the PostgreSQL organization. This system supports most SQL standards and offers many other features, such as foreign keys, triggers, views, etc. Security vulnerabilities existed in versions prior to PostgreSQL...

Vulnerability in client (CVE-2026-6477)

PostgreSQL libpq lo functions let server superuser overwrite client stack memory Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an...

CVE-2023-53879

CVE-2023-53879 affects NVClient 5.0. A stack buffer overflow in the user configuration contact field allows an attacker to overwrite 846 bytes, causing a denial of service by crashing the application. Connected sources confirm the issue and describe the vulnerability consistently; no remediation ...

CVE-2019-16536 Stack overflow leading to DoS can be triggered by a malicious authenticated client.

Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.3.3...

CVE-2016-20009: Out-of-bounds Write

A DNS client stack-based buffer overflow in ipdnscdecodename affects Wind River VxWorks 6.5 through 7. NOTE: This vulnerability only affects products that are no longer supported by the maintainer...