Is CVE-2022-32221 in the CISA KEV catalog?

No. CVE-2022-32221 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-32221?

CVE-2022-32221 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2022-32221?

CVE-2022-32221 has an EPSS score of 4.32% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-32221?

Upgrade curl on debian 11 to 7.74.0-1.3+deb11u5 or later. Fixes are available for 31 affected products.

CVE & CISA-KEV Catalog

CVE-2022-32221

CRITICALEPSS 90th pctl

9.8

CVSS v3

NVD

Description

When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same handle previously was used to issue a `PUT` request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the subsequent `POST` request. The problem exists in the logic for a reused handle when it is changed from a PUT to a POST.

CWE-200Information Exposure CWE-668

How to fix

Remediation Available

curlDebian

Fixed in:7.74.0-1.3+deb11u5CVE-2022-32221

Fixed in:7.86.0-1CVE-2022-32221

curlRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curlRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curl-debuginfoRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curl-debuginfoRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curl-debugsourceRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curl-debugsourceRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curl-minimalRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curl-minimalRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curl-minimal-debuginfoRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curl-minimal-debuginfoRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurlRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurlRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurl-debuginfoRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurl-debuginfoRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurl-develRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurl-develRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurl-minimalRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurl-minimalRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurl-minimal-debuginfoRocky

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

libcurl-minimal-debuginfoRed Hat / RHEL

Fixed in:0:7.76.1-14.el9_0.6RHSA-2023:4139

curlUbuntu

Fixed in:7.35.0-1ubuntu2.20+esm13USN-5702-2

Fixed in:7.47.0-1ubuntu2.19+esm6USN-5702-2

Fixed in:7.58.0-2ubuntu3.21USN-5702-1

Fixed in:7.68.0-1ubuntu2.14USN-5702-1

Fixed in:7.81.0-1ubuntu1.6USN-5702-1

Fixed in:7.85.0-1ubuntu0.1USN-5702-1

libcurl3Ubuntu

Fixed in:7.35.0-1ubuntu2.20+esm13USN-5702-2

Fixed in:7.47.0-1ubuntu2.19+esm6USN-5702-2

libcurl3-gnutlsUbuntu

Fixed in:7.35.0-1ubuntu2.20+esm13USN-5702-2

Fixed in:7.47.0-1ubuntu2.19+esm6USN-5702-2

Fixed in:7.58.0-2ubuntu3.21USN-5702-1

Fixed in:7.68.0-1ubuntu2.14USN-5702-1

Fixed in:7.81.0-1ubuntu1.6USN-5702-1

Fixed in:7.85.0-1ubuntu0.1USN-5702-1

libcurl3-nssUbuntu

Fixed in:7.35.0-1ubuntu2.20+esm13USN-5702-2

Fixed in:7.47.0-1ubuntu2.19+esm6USN-5702-2

Fixed in:7.58.0-2ubuntu3.21USN-5702-1

Fixed in:7.68.0-1ubuntu2.14USN-5702-1

Fixed in:7.81.0-1ubuntu1.6USN-5702-1

Fixed in:7.85.0-1ubuntu0.1USN-5702-1

libcurl4Ubuntu

Fixed in:7.58.0-2ubuntu3.21USN-5702-1

Fixed in:7.68.0-1ubuntu2.14USN-5702-1

Fixed in:7.81.0-1ubuntu1.6USN-5702-1

Fixed in:7.85.0-1ubuntu0.1USN-5702-1

mysql-5.7Ubuntu

Fixed in:5.7.41-0ubuntu0.18.04.1USN-5823-1

mysql-8.0Ubuntu

Fixed in:8.0.32-0buntu0.20.04.1USN-5823-1

Fixed in:8.0.32-0buntu0.22.04.1USN-5823-1

Fixed in:8.0.32-0buntu0.22.10.1USN-5823-1

mysql-server-5.7Ubuntu

Fixed in:5.7.41-0ubuntu0.18.04.1USN-5823-1

mysql-server-8.0Ubuntu

Fixed in:8.0.32-0buntu0.20.04.1USN-5823-1

Fixed in:8.0.32-0buntu0.22.04.1USN-5823-1

Fixed in:8.0.32-0buntu0.22.10.1USN-5823-1

UniversalForwarderWindows application

Affected:8.2.0 8.2.12Fixed in:8.2.12Splunk, Inc.

Affected:9.0.0 9.0.6Fixed in:9.0.6Splunk, Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

4.32%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Exploit1

hackerone.com

Third-Party Advisory9

Mailing List1

openwall.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-13.