Medium 6.5Published Jul 6, 2022

CVE-2022-32206curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms.

Updated under an hour ago (Oct 26, 2026, 7:50 PM ET)

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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 22 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: hackerone
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
Siemens SINAMICS PERFECT HARMONY GH180 siemens:sinamics_perfect_harmony_gh180 (from the name)	all versions	CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
haxx curl haxx:curl	before 7.84.0	NVD
fedoraproject fedora fedoraproject:fedora	35	NVD
debian debian_linux debian:debian_linux	10.0; 11.0	NVD
netapp clustered_data_ontap netapp:clustered_data_ontap	all versions	NVD
netapp element_software netapp:element_software	all versions	NVD
netapp hci_management_node netapp:hci_management_node	all versions	NVD
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References

References

https://hackerone.com/reports/1570651	exploit, third-party-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/	vendor-advisory, mailing-list, third-party-advisory
https://www.debian.org/security/2022/dsa-5197	vendor-advisory, third-party-advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html	mailing-list, third-party-advisory
https://security.netapp.com/advisory/ntap-20220915-0003/	third-party-advisory
https://support.apple.com/kb/HT213488	third-party-advisory
http://seclists.org/fulldisclosure/2022/Oct/41	mailing-list, third-party-advisory
http://seclists.org/fulldisclosure/2022/Oct/28	mailing-list, third-party-advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf	patch, third-party-advisory
https://security.gentoo.org/glsa/202212-01	vendor-advisory, third-party-advisory
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.