CVE-2020-15677

high
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
8.0

Description

By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-15677

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-15677.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202009-10

OS impact

OSVersionStatusFixed in
arch archfixed81.0-1
suse slesaffected
debian debiansidfixed81.0-1
debian debianbookwormfixed78.3.0esr-1
debian debianbullseyefixed78.3.0esr-1
debian debianforkyfixed78.3.0esr-1
debian debiantrixiefixed78.3.0esr-1

References

Verify integrity in audit chain (admin only). AS-IS.