How severe is CVE-2008-1531?

CVE-2008-1531 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2008-1531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1531?

CVE-2008-1531 primarily affects Lighttpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-1531?

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

When was CVE-2008-1531 published?

CVE-2008-1531 was published on 2008-03-27 and last updated on 2026-06-16.

CVE-2008-1531

CVE-2008-1531 is a medium-severity vulnerability in Lighttpd 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: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Lighttpd
Published: 2008-03-27
Last modified: 2026-06-16

Description

The connection_state_machine function (connections.c) in lighttpd 1.4.19 and earlier, and 1.5.x before 1.5.0, allows remote attackers to cause a denial of service (active SSL connection loss) by triggering an SSL error, such as disconnecting before a download has finished, which causes all active SSL connections to be lost.

Frequently asked questions

What is CVE-2008-1531?: The connection_state_machine function (connections.c) in lighttpd 1.4.19 and earlier, and 1.5.x before 1.5.0, allows remote attackers to cause a denial of service (active SSL connection loss) by triggering an SSL error, such as disconnecting before a download has finished, which causes all active SSL connections to be lost.
How severe is CVE-2008-1531?: CVE-2008-1531 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2008-1531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1531?: CVE-2008-1531 primarily affects Lighttpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-1531?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-1531 published?: CVE-2008-1531 was published on 2008-03-27 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:lighttpd:lighttpd:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

220.80.66.168 (ipv4-addr)