THREATPORT/VULNERABILITY/CVE-2019-11706
HIGH SEVERITY

CVE-2019-11706

Thunderbird vulnerability

CVSS
7.5
EPSS
9.7%
EPSS pct
95th
Exploited
No known
A flaw in Thunderbird's implementation of iCal causes a type confusion in icaltimezone_get_vtimezone_properties when processing certain email messages, resulting in a crash. This vulnerability affects Thunderbird < 60.7.1.
Affected vendor
Mozilla
Affected product
Thunderbird
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2019-07-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 9.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2019-11706

  • Confirm whether Mozilla Thunderbird is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-11706.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-11706

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-11706 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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