CVE-2020-17446

Name: CVE-2020-17446
Creator: NVD / NIST
Published: 2020-08-12T16:15:11.963+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.42%

Last modified Jun 17, 2026

CVE-2020-17446 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. asyncpg before 0.21.0 allows a malicious PostgreSQL server to trigger a crash or execute arbitrary code (on a database client) via a crafted server response, because of access to an uninitialized pointer in the array data decoder.. EPSS estimates a 2.42% chance of exploitation in the next 30 days.

Description

asyncpg before 0.21.0 allows a malicious PostgreSQL server to trigger a crash or execute arbitrary code (on a database client) via a crafted server response, because of access to an uninitialized pointer in the array data decoder.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.42%

82.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-824

Affected Software

Vendor	Product	Versions
Magic	Asyncpg	< 0.21.0
Debian	Debian Linux	9.0

References

https://github.com/MagicStack/asyncpg/releases/tag/v0.21.0Patch, Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00002.htmlMailing List, Third Party Advisory
https://github.com/MagicStack/asyncpg/releases/tag/v0.21.0Patch, Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00002.htmlMailing List, Third Party Advisory

Timeline

Published: Aug 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17446?

How severe is CVE-2020-17446?

CVE-2020-17446 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.42% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17446?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-17446?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST