Is CVE-2011-1843 in the CISA KEV catalog?

No. CVE-2011-1843 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-1843?

CVE-2011-1843 has a CVSS v2 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2011-1843?

CVE-2011-1843 has an EPSS score of 1.34% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-1843?

Upgrade tinyproxy on debian 11 to 1.8.2-2 or later.

CVE & CISA-KEV Catalog

CVE-2011-1843

MEDIUM

6.8

CVSS v2

NVD

Description

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.

CWE-189

How to fix

Remediation Available

tinyproxyDebian

Fixed in:1.8.2-2CVE-2011-1843

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.34%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Patch2

Other references1

securityfocus.com

Related Vulnerabilities

Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-1538	High	10.0	99%	-	-
CVE-2006-3747	High	7.6	96%	-	Fix
CVE-2007-0071	High	9.3	93%	-	-
CVE-2015-3829	High	10.0	90%	-	-
CVE-2015-3864	High	10.0	87%	-	-
CVE-2015-1539	High	10.0	86%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.