CVE-2021-20693: Improper access control vulnerability in Gurunavi App for Android ver.10.0.10 and earlier and for iOS ver.11.1

Q: How do I fix CVE-2021-20693?

gurunavi: upgrade to newer than 10.0.10; gurunavi: upgrade to newer than 11.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2021-20693 being exploited?

CVE-2021-20693 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-20693 affect?

CVE-2021-20693 affects gurunavi, gurunavi. Severity is high (CVSS 7.5). Improper access control vulnerability in Gurunavi App for Android ver.10.0.10 and earlier and for iOS ver.11.1.2 and earlier allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

Q: How urgent is CVE-2021-20693?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADEUPGRADE

CVE-2021-20693 is a high-severity flaw (CVSS 7.5) affecting gurunavi, gurunavi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper access control vulnerability in Gurunavi App for Android ver.10.0.10 and earlier and for iOS ver.11.1.2 and earlier allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 33%)
CISA exploited list	No
Weakness	CWE-862
Published	2021-04-26
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: gurunavi

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

Am I affected?

Timeline

2021-04-26 01:15 UTCPublished CVE record published
2026-06-17 03:34 UTCUpdated Record last modified

gurunavi gurunavi UPGRADE

Affected: <= 10.0.10

Fixed in: newer than 10.0.10

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy gurunavi || rpm -q gurunavi || gurunavi --version

2. UPGRADE to newer than 10.0.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gurunavi

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gurunavi

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

gurunavi gurunavi UPGRADE

Affected: <= 11.1.2

Fixed in: newer than 11.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy gurunavi || rpm -q gurunavi || gurunavi --version

2. UPGRADE to newer than 11.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gurunavi

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gurunavi

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-2021-20693?

gurunavi: upgrade to newer than 10.0.10; gurunavi: upgrade to newer than 11.1.2. Exact commands for each OS are on this page.

Is CVE-2021-20693 being exploited?

CVE-2021-20693 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-2021-20693 affect?

CVE-2021-20693 affects gurunavi, gurunavi. Severity is high (CVSS 7.5). Improper access control vulnerability in Gurunavi App for Android ver.10.0.10 and earlier and for iOS ver.11.1.2 and earlier allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

How urgent is CVE-2021-20693?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities · iOS vulnerabilities

References

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