Is CVE-2012-2374 being actively exploited?

CVE-2012-2374 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-2374?

CVE-2012-2374 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2012-2374

MEDIUM · CVSS 5.0EPSS 1.4%EU EUVD

CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via crafted input.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-20
EPSS score: 1.4% (72th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-0029)
Published: May 23, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-0029 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

tornadoweb / tornado
tornadoweb / tornado
tornadoweb / tornado
tornadoweb / tornado
tornadoweb / tornado
tornadoweb / tornado
tornadoweb / tornado
tornadoweb / tornado
tornadoweb / tornado
tornadoweb / tornado

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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