How severe is CVE-2009-3305?

CVE-2009-3305 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-3305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3305?

CVE-2009-3305 affects Pps.jussieu Polipo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-3305?

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

When was CVE-2009-3305 published?

CVE-2009-3305 was published on 2009-12-24 and last updated on 2026-06-16.

CVE-2009-3305

CVE-2009-3305 is a medium-severity vulnerability in Pps.jussieu Polipo with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Pps.jussieu Polipo
Published: 2009-12-24
Last modified: 2026-06-16

Description

Polipo 1.0.4, and possibly other versions, allows remote attackers to cause a denial of service (crash) via a request with a Cache-Control header that lacks a value for the max-age field, which triggers a segmentation fault in the httpParseHeaders function in http_parse.c, and possibly other unspecified vectors.

Frequently asked questions

What is CVE-2009-3305?: Polipo 1.0.4, and possibly other versions, allows remote attackers to cause a denial of service (crash) via a request with a Cache-Control header that lacks a value for the max-age field, which triggers a segmentation fault in the httpParseHeaders function in http_parse.c, and possibly other unspecified vectors.
How severe is CVE-2009-3305?: CVE-2009-3305 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-3305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3305?: CVE-2009-3305 affects Pps.jussieu Polipo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-3305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3305 published?: CVE-2009-3305 was published on 2009-12-24 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:pps.jussieu:polipo:1.0.4:*:*:*:*:*:*:*

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