High 7.5Published Dec 14, 2020

CVE-2020-8286curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 19 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 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

CVSS: 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE): CWE-295
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 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 libcurl haxx:libcurl	from 7.41.0 before 7.74.0	NVD
fedoraproject fedora fedoraproject:fedora	32; 33	NVD
debian debian_linux debian:debian_linux	9.0; 10.0	NVD
netapp clustered_data_ontap netapp:clustered_data_ontap	all versions	NVD
netapp hci_management_node netapp:hci_management_node	all versions	NVD
netapp solidfire netapp:solidfire	all versions	NVD
netapp hci_bootstrap_os netapp:hci_bootstrap_os	all versions	NVD
netapp hci_storage_node_firmware netapp:hci_storage_node_firmware	all versions	NVD
apple mac_os_x apple:mac_os_x	before 10.14.6; from 10.15 before 10.15.7; 10.14.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; and 9 more ranges	NVD
apple macos apple:macos	from 11.0 before 11.3	NVD
siemens simatic_tim_1531_irc_firmware siemens:simatic_tim_1531_irc_firmware	through 2.2	NVD
siemens sinec_infrastructure_network_services siemens:sinec_infrastructure_network_services	before 1.0.1.1	NVD
oracle communications_billing_and_revenue_management oracle:communications_billing_and_revenue_management	12.0.0.3.0	NVD
oracle communications_cloud_native_core_policy oracle:communications_cloud_native_core_policy	1.14.0	NVD
oracle essbase oracle:essbase	21.2	NVD
oracle peoplesoft_enterprise_peopletools oracle:peoplesoft_enterprise_peopletools	8.58	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/1048457x-refsource-misc, exploit, patch, third-party-advisory
https://curl.se/docs/CVE-2020-8286.htmlx-refsource-misc, vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/vendor-advisory, x-refsource-fedora, mailing-list, third-party-advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00029.htmlmailing-list, x-refsource-mlist, third-party-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/vendor-advisory, x-refsource-fedora, mailing-list, third-party-advisory
https://security.gentoo.org/glsa/202012-14vendor-advisory, x-refsource-gentoo, third-party-advisory
https://www.debian.org/security/2021/dsa-4881vendor-advisory, x-refsource-debian, third-party-advisory
http://seclists.org/fulldisclosure/2021/Apr/51mailing-list, x-refsource-fulldisc, third-party-advisory
http://seclists.org/fulldisclosure/2021/Apr/50mailing-list, x-refsource-fulldisc, third-party-advisory
http://seclists.org/fulldisclosure/2021/Apr/54mailing-list, x-refsource-fulldisc, third-party-advisory
https://www.oracle.com/security-alerts/cpuApr2021.htmlx-refsource-misc, third-party-advisory
https://security.netapp.com/advisory/ntap-20210122-0007/x-refsource-confirm, third-party-advisory
https://support.apple.com/kb/HT212325x-refsource-confirm, third-party-advisory
https://support.apple.com/kb/HT212326x-refsource-confirm, third-party-advisory
https://support.apple.com/kb/HT212327x-refsource-confirm, third-party-advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-200951.pdfx-refsource-confirm, third-party-advisory
https://www.oracle.com//security-alerts/cpujul2021.htmlx-refsource-misc, third-party-advisory
https://www.oracle.com/security-alerts/cpuapr2022.htmlx-refsource-misc, patch, third-party-advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfx-refsource-confirm, patch, third-party-advisory
https://cert-portal.siemens.com/productcert/html/ssa-200951.html
https://cert-portal.siemens.com/productcert/html/ssa-389290.html
https://cert-portal.siemens.com/productcert/html/ssa-398330.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.