VulnerabilityModified

CVE-2020-26976

When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure)…

MEDIUM 6.5EPSS 1.62%

Does this matter?

Lower severity and a low EPSS score (1.62%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS: 1.62% probability · 75th percentile
CISA KEV: Not listed
Affected: mozilla/firefox · debian/debian linux
Source: security@mozilla.org

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1674343Issue Tracking, Permissions Required, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00001.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00002.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202102-02Third Party Advisory
https://www.debian.org/security/2021/dsa-4840Third Party Advisory
https://www.debian.org/security/2021/dsa-4842Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-54/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1674343Issue Tracking, Permissions Required, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00001.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00002.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202102-02Third Party Advisory
https://www.debian.org/security/2021/dsa-4840Third Party Advisory
https://www.debian.org/security/2021/dsa-4842Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-54/Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.