How severe is CVE-2001-1081?

CVE-2001-1081 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-1081 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-1081?

CVE-2001-1081 primarily affects Lucent Radius. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-1081?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2001-1081 published?

CVE-2001-1081 was published on 2001-07-06 and last updated on 2026-06-16.

CVE-2001-1081

CVE-2001-1081 is a high-severity vulnerability in Lucent Radius with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Lucent Radius
Published: 2001-07-06
Last modified: 2026-06-16

Description

Format string vulnerabilities in Livingston/Lucent RADIUS before 2.1.va.1 may allow local or remote attackers to cause a denial of service and possibly execute arbitrary code via format specifiers that are injected into log messages.

Frequently asked questions

What is CVE-2001-1081?: Format string vulnerabilities in Livingston/Lucent RADIUS before 2.1.va.1 may allow local or remote attackers to cause a denial of service and possibly execute arbitrary code via format specifiers that are injected into log messages.
How severe is CVE-2001-1081?: CVE-2001-1081 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-1081 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1081?: CVE-2001-1081 primarily affects Lucent Radius. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-1081?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2001-1081 published?: CVE-2001-1081 was published on 2001-07-06 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:lucent:radius:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:simon_horms:radius:2.1_2:*:*:*:*:*:*:*

More vulnerabilities in Lucent Radius

CVE-2001-0534 — Critical (CVSS 10.0): Multiple buffer overflows in RADIUS daemon radiusd in (1) Merit 3.6b and (2) Lucent 2.1-2 RADIUS allow remote attackers…
CVE-2001-1376 — High (CVSS 7.5): Buffer overflow in digest calculation function of multiple RADIUS implementations allows remote attackers to cause a…
CVE-2001-1377 — Medium (CVSS 5.0): Multiple RADIUS implementations do not properly validate the Vendor-Length of the Vendor-Specific attribute, which…
CVE-2001-1082 — Medium (CVSS 5.0): Directory traversal vulnerability in Livingston/Lucent RADIUS before 2.1.va.1 may allow attackers to read arbitrary…

All CVEs affecting Lucent Radius →