Is CVE-2017-11343 in the CISA KEV catalog?

No. CVE-2017-11343 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-11343?

CVE-2017-11343 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-11343?

CVE-2017-11343 has an EPSS score of 0.93% (56th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-11343?

Upgrade chicken on debian 11 to 4.12.0-0.2 or later.

CVE & CISA-KEV Catalog

CVE-2017-11343

HIGH

7.5

CVSS v3

NVD

Description

Due to an incomplete fix for CVE-2012-6125, all versions of CHICKEN Scheme up to and including 4.12.0 are vulnerable to an algorithmic complexity attack. An attacker can provide crafted input which, when inserted into the symbol table, will result in O(n) lookup time.

CWE-407

How to fix

Remediation Available

chickenDebian

Fixed in:4.12.0-0.2CVE-2017-11343

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

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

0.93%probability of exploitation in 30 days

56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Vendor Advisory1

lists.gnu.org

Embed a live status badge for CVE-2017-11343

Markdown

[![CVE-2017-11343](https://tridentstack.com/cve/badge/CVE-2017-11343.svg)](https://tridentstack.com/cve/CVE-2017-11343)

HTML

<a href="https://tridentstack.com/cve/CVE-2017-11343"><img src="https://tridentstack.com/cve/badge/CVE-2017-11343.svg" alt="CVE-2017-11343"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2026-05-13.