3.8

CVE-2026-16241

PostgreSQL ECPG integer underflow can crash the client

Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of service against the ECPG client via sending a bytea value lacking the mandatory prefix.  The client overwrites a huge memory region with bytes outside attacker knowledge or control.  This typically yields a simple SIGSEGV, but rare cases might achieve client-specific integrity impact via the write.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Postgresql ≫ Postgresql Version >= 14.0 < 14.24
Postgresql ≫ Postgresql Version >= 15.0 < 15.19
Postgresql ≫ Postgresql Version >= 16.0 < 16.15
Postgresql ≫ Postgresql Version >= 17.0 < 17.11
Postgresql ≫ Postgresql Version >= 18.0 < 18.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.34% 0.264
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 3.8 1.2 2.5
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
CWE-191 Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

https://www.postgresql.org/support/security/CVE-2026-16241/
Vendor Advisory