CVE-2020-15677: debian debian_linux Open Redirect
Vulnerability summary
CVE-2020-15677 is a medium (CVSS 6.1) Open Redirect vulnerability in debian debian_linux. EPSS estimates a 1.66% chance of exploitation in the next 30 days, higher than 76.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 29 · Related 13Timeline
- 01-10-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.66%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
0.00 pp
From 1.66% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu5 products
- firefox< 81.0+build2-0ubuntu0.16.04.1 | < 81.0+build2-0ubuntu0.18.04.1 | < 81.0+build2-0ubuntu0.20.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- thunderbird< 1:78.8.1+build1-0ubuntu0.18.04.1 | < 1:78.7.1+build1-0ubuntu0.20.04.1
Debian3 products
- firefox-esr< 78.3.0esr-1
- thunderbird< 1:78.3.1-1
- debian_linuxEOL9.0 | 10.0
Mozilla3 products
- firefox≥ unspecified, < 81 | < 81.0
- firefox_esr≥ unspecified, < 78.3 | < 78.3
- thunderbird≥ unspecified, < 78.3 | < 78.3
Opensuse1 product
- leapEOL15.1 | 15.2
4 vendors · 12 products
References
16 links- bugzilla.mozilla.org/show_bug.cgi?id=1641487X Refsource MISCIssue TrackingPermissions RequiredVendor Advisory
- lists.debian.org/debian-lts-announce/2020/10/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlVendor AdvisoryX Refsource SUSEBroken LinkMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlVendor AdvisoryX Refsource SUSEBroken LinkMailing ListThird Party Advisory