How severe is CVE-2001-1071?

CVE-2001-1071 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-1071 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-1071?

CVE-2001-1071 primarily affects Cisco Ios. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-1071?

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

When was CVE-2001-1071 published?

CVE-2001-1071 was published on 2001-10-09 and last updated on 2026-06-16.

CVE-2001-1071

CVE-2001-1071 is a medium-severity vulnerability in Cisco Ios 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: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Ios
Published: 2001-10-09
Last modified: 2026-06-16

Description

Cisco IOS 12.2 and earlier running Cisco Discovery Protocol (CDP) allows remote attackers to cause a denial of service (memory consumption) via a flood of CDP neighbor announcements.

Frequently asked questions

What is CVE-2001-1071?: Cisco IOS 12.2 and earlier running Cisco Discovery Protocol (CDP) allows remote attackers to cause a denial of service (memory consumption) via a flood of CDP neighbor announcements.
How severe is CVE-2001-1071?: CVE-2001-1071 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-1071 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1071?: CVE-2001-1071 primarily affects Cisco Ios. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-1071?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-1071 published?: CVE-2001-1071 was published on 2001-10-09 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:o:cisco:ios:11.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:11.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:11.3\(11\)b:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0\(5.1\)xp:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0\(19\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:4.5\(1\):*:*:*:*:*:*:*

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