Integer overflow in conf.c in Tinyproxy before 1.8.3 might allow remote attackers to bypass intended access restrictions in opportunistic circumstances via a TCP connection, related to improper handling of invalid port numbers.
CVE-2011-1843
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 1%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 67.9%
- KEV
- Not listed
Published
May 3, 2011
Last Modified
April 29, 2026
References (6)
- cve@mitrehttp://www.securityfocus.com/bid/47715
- cve@mitrehttps://banu.com/bugzilla/show_bug.cgi?id=90
- cve@mitrehttps://banu.com/cgit/tinyproxy/diff/?id=97b9984484299b2ce72f8f4fc3706dab8a3a8439
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/47715
- af854a3a-2127-422b-91ae-364da2661108https://banu.com/bugzilla/show_bug.cgi?id=90
- af854a3a-2127-422b-91ae-364da2661108https://banu.com/cgit/tinyproxy/diff/?id=97b9984484299b2ce72f8f4fc3706dab8a3a8439
Frequently asked(4)
What is CVE-2011-1843?
CVE-2011-1843 is a none vulnerability published on May 3, 2011. Integer overflow in conf.c in Tinyproxy before 1.8.3 might allow remote attackers to bypass intended access restrictions in opportunistic circumstances via a TCP connection, related to improper handling of invalid port numbers.
When was CVE-2011-1843 disclosed?
CVE-2011-1843 was first published in the National Vulnerability Database on May 3, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-1843 actively exploited?
CVE-2011-1843 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 67.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2011-1843?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-1843, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2011-1843
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