CVE-2025-12818
PostgreSQL libpq undersizes allocations, via integer wraparound
Description
Integer wraparound in multiple PostgreSQL libpq client library functions allows an application input provider or network peer to cause libpq to undersize an allocation and write out-of-bounds by hundreds of megabytes. This results in a segmentation fault for the application using libpq. Versions before PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 are affected.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
Postgres Professional
commercialaka postgres pro enterprise, postgres pro certified
АО «СберТех»
commercial·RUaka ao sbertech, сбертех
АО «ИВК»
commercial·RUaka ivk
PostgreSQL Global Development Group
oss-project·USaka postgresql
ООО «Ред Софт»
commercial·RUaka red soft
and 2 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Initial Access
References
https://www.postgresql.org/support/security/CVE-2025-12818
postgresql.org
https://postgrespro.ru/products/postgrespro/certified
postgrespro.ru
https://altsp.su/obnovleniya-bezopasnosti/
altsp.su
and 2 more references View all →
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