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CVE-2020-15670

HIGH
8.8
CVSS Score
Published: October 1, 2020 at 06:41 PM UTC
Updated: August 19, 2026 at 03:29 PM UTC
4 products affected across 1 vendorFirefoxThunderbirdFirefox ESR

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Severity
HIGH8.8
Exploit prediction
EPSS 1%

Description

Mozilla developers reported memory safety bugs present in Firefox for Android 79. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.

Affected

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

Firefox· Mozilla
95%
v < 80v < 80.0
Affected range stops below 80, so it looks safe — our inference, not a vendor statement
Affected range stops below 80.0, so it looks safe — our inference, not a vendor statement
Firefox ESR· Mozilla
95%
v < 78.2
Affected range stops below 78.2, so it looks safe — our inference, not a vendor statement
Firefox Mobile· Mozilla
95%
v < 80.0
Affected range stops below 80.0, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
v < 78.2
Affected range stops below 78.2, so it looks safe — our inference, not a vendor statement

References (5)

x_refsource_MISCBroken LinkIssue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651001%2C1653626%2C1656957
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-36/
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-38/
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-39/
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-41/

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362CWE-416CWE-617

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