CVE-2022-27782

Name: CVE-2022-27782
Creator: NVD / NIST
Published: 2022-06-02T14:15:44.663+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.60%

Last modified Jun 17, 2026

CVE-2022-27782 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were left out from the configuration match checks, making themmatch too easily.. EPSS estimates a 2.60% chance of exploitation in the next 30 days.

Description

libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were left out from the configuration match checks, making themmatch too easily.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.60%

83.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Haxx	Curl	< 7.83.1
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0
Splunk	Universal Forwarder	>= 8.2.0, < 8.2.12
Splunk	Universal Forwarder	>= 9.0.0, < 9.0.6
Splunk	Universal Forwarder	9.1.0

References

http://www.openwall.com/lists/oss-security/2023/03/20/6Mailing List
https://hackerone.com/reports/1555796Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory
https://www.debian.org/security/2022/dsa-5197Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/03/20/6Mailing List
https://hackerone.com/reports/1555796Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory
https://www.debian.org/security/2022/dsa-5197Mailing List, Third Party Advisory
https://hackerone.com/reports/1555796Exploit, Third Party Advisory

Timeline

Published: Jun 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-27782?

How severe is CVE-2022-27782?

CVE-2022-27782 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.60% probability of exploitation in the next 30 days.

How do I fix CVE-2022-27782?

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-2022-27782?

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

Scan your code now

Source: NVD / NIST