How severe is CVE-2001-0839?

CVE-2001-0839 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-0839 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0839?

CVE-2001-0839 affects Ibill Internet Billing Company Processing Plus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0839?

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-2001-0839 published?

CVE-2001-0839 was published on 2001-12-06 and last updated on 2026-06-16.

CVE-2001-0839

CVE-2001-0839 is a high-severity vulnerability in Ibill Internet Billing Company Processing Plus 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: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibill Internet Billing Company Processing Plus
Published: 2001-12-06
Last modified: 2026-06-16

Description

ibillpm.pl in iBill password management system generates weak passwords based on a client's MASTER_ACCOUNT, which allows remote attackers to modify account information in the .htpasswd file via brute force password guessing.

Frequently asked questions

What is CVE-2001-0839?: ibillpm.pl in iBill password management system generates weak passwords based on a client's MASTER_ACCOUNT, which allows remote attackers to modify account information in the .htpasswd file via brute force password guessing.
How severe is CVE-2001-0839?: CVE-2001-0839 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-0839 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0839?: CVE-2001-0839 affects Ibill Internet Billing Company Processing Plus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0839?: 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-2001-0839 published?: CVE-2001-0839 was published on 2001-12-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ibill_internet_billing_company:processing_plus:*:*:*:*:*:*:*:*