CVE-2019-17005: Buffer Overflow
Last updated 25 August 2025
Other sources
The plain text serializer used a fixed-size array for the number of
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2019-17005?
CVE-2019-17005 is a vulnerability that affects Thunderbird, Firefox ESR, and Firefox, leading to memory corruption and a potentially exploitable crash.
Which software versions are affected by CVE-2019-17005?
CVE-2019-17005 affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.0.
What is the severity of CVE-2019-17005?
CVE-2019-17005 has a severity rating of 8.8 (high).
How can I fix CVE-2019-17005?
To fix CVE-2019-17005, you should update Thunderbird to version 68.3 or later, Firefox ESR to version 68.3 or later, and Firefox to version 71.0 or later.
Where can I find more information about CVE-2019-17005?
You can find more information about CVE-2019-17005 at the following references: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1584170), [Mozilla Advisory](https://www.mozilla.org/en-US/security/advisories/mfsa2019-38/), [Mozilla Security Advisory](https://www.mozilla.org/security/advisories/mfsa2019-36/).