How severe is CVE-2001-0411?

CVE-2001-0411 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-0411 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0411?

CVE-2001-0411 affects Siemens Reliant Unix. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0411?

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

When was CVE-2001-0411 published?

CVE-2001-0411 was published on 2001-06-18 and last updated on 2026-06-16.

CVE-2001-0411

CVE-2001-0411 is a medium-severity vulnerability in Siemens Reliant Unix 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: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Siemens Reliant Unix
Published: 2001-06-18
Last modified: 2026-06-16

Description

Reliant Unix 5.44 and earlier allows remote attackers to cause a denial of service via an ICMP port unreachable packet, which causes Reliant to drop all connections to the source address of the packet.

Frequently asked questions

What is CVE-2001-0411?: Reliant Unix 5.44 and earlier allows remote attackers to cause a denial of service via an ICMP port unreachable packet, which causes Reliant to drop all connections to the source address of the packet.
How severe is CVE-2001-0411?: CVE-2001-0411 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0411 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0411?: CVE-2001-0411 affects Siemens Reliant Unix. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0411?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0411 published?: CVE-2001-0411 was published on 2001-06-18 and last updated on 2026-06-16.

References

http://marc.info/?l=bugtraq&m=98658209505849&w=2

Affected products (1)

cpe:2.3:o:siemens:reliant_unix:5.44:*:*:*:*:*:*:*

More vulnerabilities in Siemens Reliant Unix

CVE-1999-0017 — High (CVSS 7.5): FTP servers can allow an attacker to connect to arbitrary ports on machines other than the FTP client, aka FTP bounce.
CVE-2001-0384 — Low (CVSS 2.1): ppd in Reliant Sinix allows local users to corrupt arbitrary files via a symlink attack in the /tmp/ppd.trace file.

All CVEs affecting Siemens Reliant Unix →