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 ()
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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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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
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 |
netapp solidfire netapp:solidfire | all versions | NVD |
netapp bootstrap_os netapp:bootstrap_os | all versions | NVD |
netapp h300s_firmware netapp:h300s_firmware | all versions | NVD |
netapp h500s_firmware netapp:h500s_firmware | all versions | NVD |
netapp h700s_firmware netapp:h700s_firmware | all versions | NVD |
netapp h410s_firmware netapp:h410s_firmware | all versions | NVD |
siemens scalance_sc622-2c_firmware siemens:scalance_sc622-2c_firmware | before 3.0 | NVD |
siemens scalance_sc626-2c_firmware siemens:scalance_sc626-2c_firmware | before 3.0 | NVD |
siemens scalance_sc632-2c_firmware siemens:scalance_sc632-2c_firmware | before 3.0 | NVD |
siemens scalance_sc636-2c_firmware siemens:scalance_sc636-2c_firmware | before 3.0 | NVD |
siemens scalance_sc642-2c_firmware siemens:scalance_sc642-2c_firmware | before 3.0 | NVD |
siemens scalance_sc646-2c_firmware siemens:scalance_sc646-2c_firmware | before 3.0 | NVD |
splunk universal_forwarder splunk:universal_forwarder | from 8.2.0 before 8.2.12; from 9.0.0 before 9.0.6; 9.1.0 | NVD |
References
- https://hackerone.com/reports/1570651exploit, 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-5197vendor-advisory, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlmailing-list, third-party-advisory
- https://security.netapp.com/advisory/ntap-20220915-0003/third-party-advisory
- https://support.apple.com/kb/HT213488third-party-advisory
- http://seclists.org/fulldisclosure/2022/Oct/41mailing-list, third-party-advisory
- http://seclists.org/fulldisclosure/2022/Oct/28mailing-list, third-party-advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdfpatch, third-party-advisory
- https://security.gentoo.org/glsa/202212-01vendor-advisory, third-party-advisory
- http://www.openwall.com/lists/oss-security/2023/02/15/3mailing-list, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-333517.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-419740.html
- https://cert-portal.siemens.com/productcert/html/ssa-558014.html
- https://cert-portal.siemens.com/productcert/html/ssa-942865.html
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.