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Vulnerability record · public intelligence
CVE-2016-1983
HIGH
CVE-2016-1983
Published Jan 27, 2016 · Updated Oct 23, 2026
Severity · CVSSHIGH · 7.5
Known exploitationNot listed
EPSS / likelihood2.87%
QFinch risk score10 / 100
Original summary
Normalized public record · Updated Oct 23, 2026
The client_host function in parsers.c in Privoxy before 3.0.24 allows remote attackers to cause a denial of service (invalid read and crash) via an empty HTTP Host header.
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
The client_host function in parsers.c in Privoxy before 3.0.24 allows remote attackers to cause a denial of service (invalid read and crash) via an empty HTTP Host header.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
CVENVDEPSS
- SSVC priority
- MEDIUM
- Confidence
- 10%
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- DSA-3460 ↗
- [oss-security] 20160121 Re: CVE request for Privoxy 3.0.24 ↗
- [oss-security] 20160121 CVE request for Privoxy 3.0.24 ↗
- ijbswa.cvs.sourceforge.net ↗
- FEDORA-2016-bc7acd24c6 ↗
- FEDORA-2016-29995fbd42 ↗
- www.privoxy.org ↗
Record history
Published Jan 27, 2016 · Last refreshed Oct 23, 2026