CVE-2017-17843

Name: CVE-2017-17843
Creator: NVD / NIST
Published: 2017-12-27T17:08:19.67+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.12%

Last modified Jun 17, 2026

CVE-2017-17843 is a vulnerability of currently unknown severity. An issue was discovered in Enigmail before 1.9.9 that allows remote attackers to trigger use of an intended public key for encryption, because incorrect regular expressions are used for extraction of an e-mail address from a comma-separated list, as demonstrated by a modified Full Name field and a homograph attack, aka TBE-01-002.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

An issue was discovered in Enigmail before 1.9.9 that allows remote attackers to trigger use of an intended public key for encryption, because incorrect regular expressions are used for extraction of an e-mail address from a comma-separated list, as demonstrated by a modified Full Name field and a homograph attack, aka TBE-01-002.

Metrics

EPSS Probability

1.12%

62.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Enigmail	Enigmail	< 1.9.9
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

Timeline

Published: Dec 27, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-17843?

How severe is CVE-2017-17843?

Severity scoring for CVE-2017-17843 is pending analysis. The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2017-17843?

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-2017-17843?

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

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Source: NVD / NIST