How severe is CVE-2001-0977?

CVE-2001-0977 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-0977 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0977?

CVE-2001-0977 primarily affects Mandrakesoft Mandrake Single Network Firewall. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-0977?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2001-0977 published?

CVE-2001-0977 was published on 2001-07-16 and last updated on 2026-06-16.

CVE-2001-0977

CVE-2001-0977 is a medium-severity vulnerability in Mandrakesoft Mandrake Single Network Firewall with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mandrakesoft Mandrake Single Network Firewall
Published: 2001-07-16
Last modified: 2026-06-16

Description

slapd in OpenLDAP 1.x before 1.2.12, and 2.x before 2.0.8, allows remote attackers to cause a denial of service (crash) via an invalid Basic Encoding Rules (BER) length field.

Frequently asked questions

What is CVE-2001-0977?: slapd in OpenLDAP 1.x before 1.2.12, and 2.x before 2.0.8, allows remote attackers to cause a denial of service (crash) via an invalid Basic Encoding Rules (BER) length field.
How severe is CVE-2001-0977?: CVE-2001-0977 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0977 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0977?: CVE-2001-0977 primarily affects Mandrakesoft Mandrake Single Network Firewall. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0977?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0977 published?: CVE-2001-0977 was published on 2001-07-16 and last updated on 2026-06-16.

References

Affected products (39)

cpe:2.3:a:mandrakesoft:mandrake_single_network_firewall:7.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.0:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.7:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.8:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.9:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.10:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.11:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.12:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:2.0:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:2.0.7:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:2.2:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:7.1:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:7.2:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux_corporate_server:1.0.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:6.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:7.1:*:*:*:*:*:*:*

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