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High 7.5Published Dec 14, 2020
CVE-2020-8231Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 7 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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Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-416
- 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 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 7.29.0 through 7.71.1 | NVD |
siemens sinec_infrastructure_network_services siemens:sinec_infrastructure_network_services | before 1.0.1.1 | NVD |
debian debian_linux debian:debian_linux | 10.0 | NVD |
oracle communications_cloud_native_core_policy oracle:communications_cloud_native_core_policy | 1.14.0 | 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/948876x-refsource-misc, exploit, issue-tracking, patch, third-party-advisory
- https://curl.haxx.se/docs/CVE-2020-8231.htmlx-refsource-misc, patch, 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
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Emailing-list, x-refsource-mlist, third-party-advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Emailing-list, x-refsource-mlist, 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-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.