How severe is CVE-2008-5742?

CVE-2008-5742 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2008-5742 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-5742?

CVE-2008-5742 primarily affects Netcat. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-5742?

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

When was CVE-2008-5742 published?

CVE-2008-5742 was published on 2008-12-26 and last updated on 2026-06-16.

CVE-2008-5742

CVE-2008-5742 is a medium-severity vulnerability in Netcat with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-59
Affected product: Netcat
Published: 2008-12-26
Last modified: 2026-06-16

Description

Multiple open redirect vulnerabilities in AIST NetCat 3.12 and earlier allow remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via (1) the redirect parameter in a logoff action to modules/auth/index.php or (2) the url parameter to modules/linkmanager/redirect.php. NOTE: this was reported within an "HTTP Response Splitting" section in the original disclosure.

Frequently asked questions

What is CVE-2008-5742?: Multiple open redirect vulnerabilities in AIST NetCat 3.12 and earlier allow remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via (1) the redirect parameter in a logoff action to modules/auth/index.php or (2) the url parameter to modules/linkmanager/redirect.php. NOTE: this was reported within an "HTTP Response Splitting" section in the original disclosure.
How severe is CVE-2008-5742?: CVE-2008-5742 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2008-5742 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-5742?: CVE-2008-5742 primarily affects Netcat. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-5742?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-5742 published?: CVE-2008-5742 was published on 2008-12-26 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:netcat:netcat:*:*:*:*:*:*:*:*
cpe:2.3:a:netcat:netcat:1.1:*:*:*:*:*:*:*
cpe:2.3:a:netcat:netcat:2.0:*:*:*:*:*:*:*
cpe:2.3:a:netcat:netcat:2.1:*:*:*:*:*:*:*
cpe:2.3:a:netcat:netcat:2.2:*:*:*:*:*:*:*
cpe:2.3:a:netcat:netcat:2.3:*:*:*:*:*:*:*
cpe:2.3:a:netcat:netcat:2.4:*:*:*:*:*:*:*
cpe:2.3:a:netcat:netcat:3.0:*:*:*:*:*:*:*

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