CVE & CISA-KEV Catalog

CVE-2020-6794

MEDIUM
6.5
CVSS v3
NVD

Description

If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Thunderbird 60. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Thunderbird < 68.5.

CWE-312CWE-459CWE-522

How to fix

Remediation Available
thunderbirdDebian
Fixed in:1:68.5.0-1CVE-2020-6794
Fixed in:1:68.5.0-1CVE-2020-6794
Fixed in:1:68.5.0-1CVE-2020-6794
Fixed in:1:68.5.0-1CVE-2020-6794
thunderbirdUbuntu
Fixed in:1:68.7.0+build1-0ubuntu0.16.04.2USN-4335-1
Fixed in:1:68.7.0+build1-0ubuntu0.18.04.1USN-4328-1
Mozilla Thunderbird (en-US)Windows application
Affected:68.5.0Fixed in:68.5.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploit Intelligence

0.99%probability of exploitation in 30 days
58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Vendor Advisory1
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.