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CVE-2020-15502: The DuckDuckGo application through 5.58.0 for Android, and through 7.47.1.0 for iOS, sends hostnames of visite

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HIGH 7.5REMOTEUPGRADEUPGRADE

CVE-2020-15502 is a high-severity flaw (CVSS 7.5) affecting duckduckgo, duckduckgo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The DuckDuckGo application through 5.58.0 for Android, and through 7.47.1.0 for iOS, sends hostnames of visited web sites within HTTPS .ico requests to servers in the duckduckgo.com domain, which might make visit data available temporarily at a Potentially Unwanted Endpoint. NOTE: the vendor has stated "the favicon service adheres to our strict privacy policy.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score7.5 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance1.5% (top 25%)
CISA exploited listNo
WeaknessCWE-200
Published2020-07-02
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: duckduckgo

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

duckduckgo duckduckgo UPGRADE
Affected: <= 5.58.0
Fixed in: newer than 5.58.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy duckduckgo || rpm -q duckduckgo || duckduckgo --version
2. UPGRADE to newer than 5.58.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade duckduckgo
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade duckduckgo
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
duckduckgo duckduckgo UPGRADE
Affected: <= 7.47.1.0
Fixed in: newer than 7.47.1.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy duckduckgo || rpm -q duckduckgo || duckduckgo --version
2. UPGRADE to newer than 7.47.1.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade duckduckgo
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade duckduckgo
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-15502?

duckduckgo: upgrade to newer than 5.58.0; duckduckgo: upgrade to newer than 7.47.1.0. Exact commands for each OS are on this page.

Is CVE-2020-15502 being exploited?

CVE-2020-15502 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-15502 affect?

CVE-2020-15502 affects duckduckgo, duckduckgo. Severity is high (CVSS 7.5). The DuckDuckGo application through 5.58.0 for Android, and through 7.47.1.0 for iOS, sends hostnames of visited web sites within HTTPS .ico requests to servers in the duckduckgo.com domain, which might make visit data available temporarily

How urgent is CVE-2020-15502?

Priority 50/100. High severity; Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities · iOS vulnerabilities

Related CVEs

References

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