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CVE-2022-32206

39
FAUCET Score

CVE-2022-32206 affects curl versions prior to 7.84.0, allowing a malicious server to chain multiple HTTP compression algorithms without limit. This unbounded decompression chain can lead to a "malloc bomb," causing curl to consume excessive heap memory or encounter out-of-memory errors. The vulnerability has a CVSS score of 6.5 (Medium) due to its network attack vector, low attack complexity, and high impact on availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.84.0CPE matchmatch criteria
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
35CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
32.16%
Probability of exploitation in next 30 days
EPSS Percentile
98.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3216 is in the 99th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

hikvisionpatch availablevia llm_extracted
microsoftpatch availablevia msrc
Product: 18670-16823Fixed in: 7.84.0-1
microsoftpatch availablevia msrc
Product: 18669-16820Fixed in: 7.84.0-1
microsoftpatch availablevia msrc
Product: cm1 curl 7.84.0-1 on CBL Mariner 1.0Fixed in: 7.84.0-1
microsoftpatch availablevia msrc
Product: cbl2 curl 7.84.0-1 on CBL Mariner 2.0Fixed in: 7.84.0-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: curl-0:7.61.1-18.el8_4.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: curl-0:7.61.1-18.el8_4.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: curl-0:7.61.1-18.el8_4.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: curl-0:7.76.1-14.el9_0.5
View patch
redhatpatch availablevia redhat_api
Product: Text-Only JBCSFixed in: jbcs-httpd24-curl
View patch
redhatpatch availablevia redhat_api
Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-curl-0:7.86.0-2.el7jbcs
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: curl-0:7.61.1-22.el8_6.4
View patch
redhatpatch availablevia redhat_api
Product: JBoss Core Services for RHEL 8Fixed in: jbcs-httpd24-curl-0:7.86.0-2.el8jbcs
View patch
zimbrapatch availablevia llm_extracted
Fixed in: 8.2.12, 9.0.6, 9.1.1
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: httpd24-curl

Vendor Advisories (4)

zimbrallm-zimbra-9542faa91a6d6884HIGH

August Third Party Package Updates in Splunk Universal Forwarder

Aug 30, 2023
microsoft2022-Jul/CVE-2022-32206Moderate

curl < 7.84.0 supports "chained" HTTP compression algorithms meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb" makingcurl end up spending enormous amounts of allocated heap memory or trying toand returning out of memory errors.

Jul 12, 2022
redhatCVE-2022-32206Moderate

curl: HTTP compression denial of service

Jun 27, 2022
hikvisionllm-hikvision-d9d8cd1cc3d007deMEDIUM

HTTP compression denial of service

Jun 27, 2022

References

cert-portal.siemens.com / productcert/pdf/ssa-333517.pdf
PatchThird Party Advisory
seclists.org / fulldisclosure/2022/Oct/28
Mailing ListThird Party Advisory
seclists.org / fulldisclosure/2022/Oct/41
Mailing ListThird Party Advisory
hackerone.com / reports/1570651
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2022/08/msg00017.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202212-01
Third Party Advisory
security.netapp.com / advisory/ntap-20220915-0003
Third Party Advisory
support.apple.com / kb/HT213488
Third Party Advisory
debian.org / security/2022/dsa-5197
Third Party Advisory
openwall.com / lists/oss-security/2023/02/15/3
Mailing ListThird Party Advisory