CVE-2017-7758
CVSS v3
9.1
CRITICAL
EPSS Score
3.0 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Mozilla: Out-of-bounds read in Opus encoder (MFSA 2017-16)
Red Hat Security Advisory: thunderbird security update
Red Hat Security Advisory: firefox security update
Description
An out-of-bounds read vulnerability with the Opus encoder when the number of channels in an audio stream changes while the encoder is in use. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
Technical details
- Published
- 2018-06-11
Frequently asked questions
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