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High 7.5Published Apr 28, 2020
CVE-2020-12243In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 20 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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In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).
- 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 2.4.50 | NVD |
debian debian_linux debian:debian_linux | 8.0; 9.0; 10.0 | NVD |
opensuse leap opensuse:leap | 15.1 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 12.04; 14.04; 16.04; 18.04; 19.10; 20.04 | NVD |
netapp cloud_backup netapp:cloud_backup | all versions | NVD |
netapp steelstore_cloud_integrated_storage netapp:steelstore_cloud_integrated_storage | all versions | NVD |
netapp h410c_firmware netapp:h410c_firmware | 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 h300e_firmware netapp:h300e_firmware | all versions | NVD |
netapp h500e_firmware netapp:h500e_firmware | all versions | NVD |
netapp h700e_firmware netapp:h700e_firmware | all versions | NVD |
netapp h410s_firmware netapp:h410s_firmware | all versions | NVD |
broadcom brocade_fabric_operating_system broadcom:brocade_fabric_operating_system | all versions | NVD |
apple mac_os_x apple:mac_os_x | from 10.13.0 before 10.13.6; from 10.14.0 before 10.14.6; from 10.15 before 10.15.6; 10.13.6; 10.13.6; 10.13.6; 10.13.6; 10.13.6; and 26 more ranges | NVD |
oracle zfs_storage_appliance_kit oracle:zfs_storage_appliance_kit | 8.8 | NVD |
oracle solaris oracle:solaris | 10; 11 | NVD |
References
- https://www.debian.org/security/2020/dsa-4666vendor-advisory, x-refsource-debian, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00001.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://usn.ubuntu.com/4352-2/vendor-advisory, x-refsource-ubuntu, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00016.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://usn.ubuntu.com/4352-1/vendor-advisory, x-refsource-ubuntu, third-party-advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlx-refsource-misc, patch, third-party-advisory
- https://bugs.openldap.org/show_bug.cgi?id=9202x-refsource-misc, exploit, patch, vendor-advisory
- https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGESx-refsource-confirm, release-notes, vendor-advisory
- https://git.openldap.org/openldap/openldap/-/commit/98464c11df8247d6a11b52e294ba5dd4f0380440x-refsource-confirm, patch, vendor-advisory
- https://security.netapp.com/advisory/ntap-20200511-0003/x-refsource-confirm, third-party-advisory
- https://support.apple.com/kb/HT211289x-refsource-confirm, third-party-advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlx-refsource-misc, third-party-advisory
- 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.