PoC Index

CVE-2026-6664

HIGH 7.5EPSS 0.7%

An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet.

CVSS v3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.70% chance of exploitation in the next 30 days, 51th percentile
Published
2026-05-09
Updated
2026-05-11

Proof-of-concept exploits (1)

References

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