CVE-2020-6795

MEDIUM
6.5
CVSS Score
Published: March 2, 2020 at 04:05 AM UTC
Updated: June 17, 2026 at 03:23 AM UTC
1 product affected across 1 vendorThunderbird

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 68.5
Affected range stops below 68.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 68.5.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

Vendor Advisoryx_refsource_GENTOO
https://security.gentoo.org/glsa/202003-10
Vendor Advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4328-1/
Vendor Advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4335-1/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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