How severe is CVE-2007-6591?

CVE-2007-6591 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2007-6591 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-6591?

CVE-2007-6591 primarily affects Kde Konqueror. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-6591?

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

When was CVE-2007-6591 published?

CVE-2007-6591 was published on 2007-12-28 and last updated on 2026-06-16.

CVE-2007-6591

CVE-2007-6591 is a medium-severity vulnerability in Kde Konqueror with a CVSS 2.0 base score of 4.3. 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 4.3)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Kde Konqueror
Published: 2007-12-28
Last modified: 2026-06-16

Description

KDE Konqueror 3.5.5 and 3.95.00, when a user accepts an SSL server certificate on the basis of the CN domain name in the DN field, regards the certificate as also accepted for all domain names in subjectAltName:dNSName fields, even though these fields cannot be examined in the product, which makes it easier for remote attackers to trick a user into accepting an invalid certificate for a spoofed web site.

Frequently asked questions

What is CVE-2007-6591?: KDE Konqueror 3.5.5 and 3.95.00, when a user accepts an SSL server certificate on the basis of the CN domain name in the DN field, regards the certificate as also accepted for all domain names in subjectAltName:dNSName fields, even though these fields cannot be examined in the product, which makes it easier for remote attackers to trick a user into accepting an invalid certificate for a spoofed web site.
How severe is CVE-2007-6591?: CVE-2007-6591 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-6591 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-6591?: CVE-2007-6591 primarily affects Kde Konqueror. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-6591?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-6591 published?: CVE-2007-6591 was published on 2007-12-28 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:kde:konqueror:3.5.5:*:*:*:*:*:*:*
cpe:2.3:a:kde:konqueror:3.95.00:*:*:*:*:*:*:*

More vulnerabilities in Kde Konqueror

CVE-2007-1565 — High (CVSS 7.8): Konqueror 3.5.5 allows remote attackers to cause a denial of service (crash) by using JavaScript to read a child iframe…
CVE-2004-1165 — High (CVSS 7.5): Konqueror 3.3.1 allows remote attackers to execute arbitrary FTP commands via an ftp:// URL that contains a URL-encoded…
CVE-2004-1158 — High (CVSS 7.5): Konqueror 3.x up to 3.2.2-6, and possibly other versions, allows remote attackers to spoof arbitrary web sites by…
CVE-2004-0867 — High (CVSS 7.5): Mozilla Firefox 0.9.2 allows web sites to set cookies for country-specific top-level domains, such as .ltd.uk, .plc.uk,…
CVE-2004-0746 — High (CVSS 7.5): Konqueror in KDE 3.2.3 and earlier allows web sites to set cookies for country-specific top-level domains, such as…
CVE-2004-0866 — High (CVSS 7.5): Internet Explorer 6.0 allows web sites to set cookies for country-specific top-level domains, such as .ltd.uk, .plc.uk,…

All CVEs affecting Kde Konqueror →