How severe is CVE-2007-0538?

CVE-2007-0538 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2007-0538 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-0538?

CVE-2007-0538 affects Telligent Systems Community Server Forums. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-0538?

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

When was CVE-2007-0538 published?

CVE-2007-0538 was published on 2007-01-29 and last updated on 2026-06-16.

CVE-2007-0538

CVE-2007-0538 is a medium-severity vulnerability in Telligent Systems Community Server Forums 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% (70th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Telligent Systems Community Server Forums
Published: 2007-01-29
Last modified: 2026-06-16

Description

Telligent Community Server 2.1 and earlier allows remote attackers to cause a denial of service (bandwidth or thread consumption) via pingback service calls with a source URI that corresponds to (1) a large file, which triggers a long download session without a timeout constraint; or (2) a file with a binary content type, which is downloaded even though it cannot contain usable pingback data.

Frequently asked questions

What is CVE-2007-0538?: Telligent Community Server 2.1 and earlier allows remote attackers to cause a denial of service (bandwidth or thread consumption) via pingback service calls with a source URI that corresponds to (1) a large file, which triggers a long download session without a timeout constraint; or (2) a file with a binary content type, which is downloaded even though it cannot contain usable pingback data.
How severe is CVE-2007-0538?: CVE-2007-0538 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-0538 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-0538?: CVE-2007-0538 affects Telligent Systems Community Server Forums. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-0538?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-0538 published?: CVE-2007-0538 was published on 2007-01-29 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:telligent_systems:community_server_forums:*:*:*:*:*:*:*:*

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