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CVE Record

CVE-2018-15586: Enigmail before 2.0.6 is prone to to OpenPGP signatures being spoofed for arbitrary messages using a PGP/IN...

Enigmail before 2.0.6 is prone to to OpenPGP signatures being spoofed for arbitrary messages using a PGP/INLINE signature wrapped within a specially crafted multipart HTML email.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw could make an email appear to have a valid OpenPGP signature from someone when the signed content was not actually what the user sees. For leaders, the main risk is misplaced trust in sensitive email decisions, especially where signed email is used for approvals, instructions, or identity assurance. Exposure is most likely where legacy Thunderbird/Enigmail deployments process signed OpenPGP email, especially versions before Enigmail 2.0.6. Organizations not using Enigmail or not relying on OpenPGP signature display are less directly exposed based on the supplied sources. Prioritize remediation where signed email is used for financial, legal, operational, or security-sensitive decisions. For general consumer-style mailbox use, urgency is lower but legacy Enigmail should still be removed or upgraded. Mitigation focus: Upgrade Enigmail installations to version 2.0.6 or later where still in use.; Check vendor guidance for supported mitigations if upgrade is not possible.; Treat signed HTML email and inline PGP display results cautiously in legacy clients..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
4Source links

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Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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