What is CVE-2020-26975?

CVE-2020-26975 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 6.5/10. Published 2021-01-07.

How severe is CVE-2020-26975?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Mozilla Firefox

CVE-2020-26975

When a malicious application installed on the user's device broadcast an Intent to Firefox for Android, arbitrary headers could have been specified, leading to attacks such as abusing ambient authority or session fixation. This was resolved by only allowing certain safe-listed headers. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84.

EPSS: 0.009 (54.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Mozilla Firefox — versions unspecified

References

security@mozilla.org (x_refsource_MISC, Vendor Advisory)
security@mozilla.org (Permissions Required, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-26975?: CVE-2020-26975 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 6.5/10. Published 2021-01-07.
How severe is CVE-2020-26975?: Medium severity. CVSS v3 base score is 6.5 out of 10.