CVE-2002-0540

CVE-2002-0540 is a high-severity vulnerability in Nortel Cvx 1800 Multi-service Access Switch with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Nortel CVX 1800 is installed with a default "public" community string, which allows remote attackers to read usernames and passwords and modify the CVX configuration.

Frequently asked questions

What is CVE-2002-0540?
Nortel CVX 1800 is installed with a default "public" community string, which allows remote attackers to read usernames and passwords and modify the CVX configuration.
How severe is CVE-2002-0540?
CVE-2002-0540 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0540 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0540?
CVE-2002-0540 primarily affects Nortel Cvx 1800 Multi-service Access Switch. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0540?
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-2002-0540 published?
CVE-2002-0540 was published on 2002-07-03 and last updated on 2026-06-16.

References

Affected products (3)