CVE-2016-7966

Name: CVE-2016-7966
Creator: NVD / NIST
Published: 2016-12-23T22:59:00.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.34%

Last modified Jun 17, 2026

CVE-2016-7966 is a vulnerability of currently unknown severity. Through a malicious URL that contained a quote character it was possible to inject HTML code in KMail's plaintext viewer. Due to the parser used on the URL it was not possible to include the equal sign (=) or a space into the injected HTML, which greatly reduces the available HTML functionality. EPSS estimates a 2.34% chance of exploitation in the next 30 days.

Description

Through a malicious URL that contained a quote character it was possible to inject HTML code in KMail's plaintext viewer. Due to the parser used on the URL it was not possible to include the equal sign (=) or a space into the injected HTML, which greatly reduces the available HTML functionality. Although it is possible to include an HTML comment indicator to hide content.

Metrics

EPSS Probability

2.34%

81.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Kde	Kmail	<= 4.4.0
Debian	Debian Linux	8.0
Fedoraproject	Fedora	25
Suse	Linux Enterprise	12.0

References

http://lists.opensuse.org/opensuse-updates/2016-10/msg00065.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3697Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/05/1Third Party Advisory
http://www.securityfocus.com/bid/93360Third Party Advisory, VDB Entry
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNMM5TVPTJQFPJ3YDF4DPXDFW3GQLWLY/
http://lists.opensuse.org/opensuse-updates/2016-10/msg00065.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3697Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/05/1Third Party Advisory
http://www.securityfocus.com/bid/93360Third Party Advisory, VDB Entry
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNMM5TVPTJQFPJ3YDF4DPXDFW3GQLWLY/

Timeline

Published: Dec 23, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-7966?

How severe is CVE-2016-7966?

Severity scoring for CVE-2016-7966 is pending analysis. The EPSS model estimates a 2.34% probability of exploitation in the next 30 days.

How do I fix CVE-2016-7966?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-7966?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST