Is CVE-2020-15646 in the CISA KEV catalog?

No. CVE-2020-15646 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-15646?

CVE-2020-15646 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2020-15646?

CVE-2020-15646 has an EPSS score of 0.96% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-15646?

Upgrade thunderbird on debian 11 to 1:68.10.0-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-15646

MEDIUM

5.9

CVSS v3

NVD

Description

If an attacker intercepts Thunderbird's initial attempt to perform automatic account setup using the Microsoft Exchange autodiscovery mechanism, and the attacker sends a crafted response, then Thunderbird sends username and password over https to a server controlled by the attacker. This vulnerability affects Thunderbird < 68.10.0.

How to fix

Remediation Available

thunderbirdDebian

Fixed in:1:68.10.0-1CVE-2020-15646

Mozilla Thunderbird (en-US)Windows application

Affected:68.10.0Fixed in:68.10.0Mozilla

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.96%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Vendor Advisory2

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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.