CVE-2026-2005 | BDVDB-2026-315255 Detail

PostgreSQL

Description#

Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-122 Heap-based Buffer Overflow
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

References#

Show all 34

Exploit#

No public exploit known

History#

Version 12026-02-12Record published in the CVE List.
Version 22026-07-15Most recent update recorded in the CVE List.

Published

Published: 2026-02-12
Last modified: 2026-07-15

Vendor information

Vendor: Not stated
Product: PostgreSQL

Score

8.8 High

EPSS

1.3%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 71.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 18 and < 18.2
Fixed
18.2
Vulnerable
>= 17 and < 17.8
Fixed
17.8
Vulnerable
>= 16 and < 16.12
Fixed
16.12
Vulnerable
>= 15 and < 15.16
Fixed
15.16
Vulnerable
< 14.21
Fixed
14.21

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).