CVE-2017-7758
9.1
CRITICAL · CVSS 3.0 · EPSS 3.1% (pctl 87)
In your normal cycle
Critical by CVSS (9.1), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.1 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| EPSS | 3.11% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-125 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-06-11 |
| Last modified | 2026-06-17 |
Affected (8)
| Vendor | Product |
|---|---|
| debian | debian linux |
| mozilla | firefox |
| mozilla | thunderbird |
| redhat | enterprise linux desktop |
| redhat | enterprise linux server |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server eus |
| redhat | enterprise linux workstation |
References
- http://www.securityfocus.com/bid/99057
- http://www.securitytracker.com/id/1038689
- https://access.redhat.com/errata/RHSA-2017:1440
- https://access.redhat.com/errata/RHSA-2017:1561
- https://bugzilla.mozilla.org/show_bug.cgi?id=1368490
- https://www.debian.org/security/2017/dsa-3881
- https://www.debian.org/security/2017/dsa-3918
- https://www.mozilla.org/security/advisories/mfsa2017-15/
- https://www.mozilla.org/security/advisories/mfsa2017-16/
- https://www.mozilla.org/security/advisories/mfsa2017-17/
- http://www.securityfocus.com/bid/99057
- http://www.securitytracker.com/id/1038689
- https://access.redhat.com/errata/RHSA-2017:1440
- https://access.redhat.com/errata/RHSA-2017:1561
- https://bugzilla.mozilla.org/show_bug.cgi?id=1368490
- https://www.debian.org/security/2017/dsa-3881
- https://www.debian.org/security/2017/dsa-3918
- https://www.mozilla.org/security/advisories/mfsa2017-15/
- https://www.mozilla.org/security/advisories/mfsa2017-16/
- https://www.mozilla.org/security/advisories/mfsa2017-17/
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