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High 7.5Published Jan 25, 2021
CVE-2020-36222A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd in the saslAuthzTo validation, resulting in denial of service.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 6 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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A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd in the saslAuthzTo validation, resulting in denial of service.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- 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 |
openldap openldap openldap:openldap | before 2.4.57 | NVD |
debian debian_linux debian:debian_linux | 9.0; 10.0 | NVD |
apple mac_os_x apple:mac_os_x | from 10.14.0 before 10.14.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; and 10 more ranges | NVD |
apple macos apple:macos | from 11.1 before 11.4 | NVD |
References
- https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57x-refsource-misc, release-notes, vendor-advisory
- https://bugs.openldap.org/show_bug.cgi?id=9406x-refsource-misc, issue-tracking, vendor-advisory
- https://git.openldap.org/openldap/openldap/-/commit/6ed057b5b728b50746c869bcc9c1f85d0bbbf6edx-refsource-misc, patch, vendor-advisory
- https://git.openldap.org/openldap/openldap/-/commit/02dfc32d658fadc25e4040f78e36592f6e1e1ca0x-refsource-misc, patch, vendor-advisory
- https://bugs.openldap.org/show_bug.cgi?id=9407x-refsource-misc, issue-tracking, vendor-advisory
- https://git.openldap.org/openldap/openldap/-/commit/6ed057b5b728b50746c869bcc9c1f85d0bbbf6ed.aax-refsource-misc, broken-link
- https://lists.debian.org/debian-lts-announce/2021/02/msg00005.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://www.debian.org/security/2021/dsa-4845vendor-advisory, x-refsource-debian, third-party-advisory
- https://security.netapp.com/advisory/ntap-20210226-0002/x-refsource-confirm, third-party-advisory
- https://support.apple.com/kb/HT212529x-refsource-confirm, third-party-advisory
- https://support.apple.com/kb/HT212531x-refsource-confirm, third-party-advisory
- https://support.apple.com/kb/HT212530x-refsource-confirm, third-party-advisory
- http://seclists.org/fulldisclosure/2021/May/70mailing-list, x-refsource-fulldisc, third-party-advisory
- http://seclists.org/fulldisclosure/2021/May/64mailing-list, x-refsource-fulldisc, third-party-advisory
- http://seclists.org/fulldisclosure/2021/May/65mailing-list, x-refsource-fulldisc, third-party-advisory
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Emailing-list, x-refsource-mlist
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Emailing-list, x-refsource-mlist
- 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.