CVE-2017-8936: The MoboTap Dolphin Web Browser - Fast Private Internet Search app 9.23.0 through 9.23.2 for iOS does not veri

Routine

MEDIUM 5.9REMOTEDOWNGRADE

CVE-2017-8936 is a medium-severity flaw (CVSS 5.9) affecting dolphin web browser. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The MoboTap Dolphin Web Browser - Fast Private Internet Search app 9.23.0 through 9.23.2 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-295
Published	2017-05-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: changyou

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

Am I affected?

Timeline

2017-05-15 18:29 UTCPublished CVE record published
2026-06-17 01:27 UTCUpdated Record last modified

changyou dolphin web browser DOWNGRADE

Affected: 9.23.0 · 9.23.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.23.0

1. Check installed version

apt-cache policy dolphin-web-browser || rpm -q dolphin-web-browser || dolphin-web-browser --version

2. No fixed release: DOWNGRADE to a release before 9.23.0 (Debian / Ubuntu)

apt-cache madison dolphin-web-browser sudo apt install dolphin-web-browser=<VERSION_BEFORE_9.23.0> sudo apt-mark hold dolphin-web-browser

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list dolphin-web-browser sudo dnf downgrade dolphin-web-browser-<VERSION_BEFORE_9.23.0> sudo dnf versionlock add dolphin-web-browser

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2017-8936?

dolphin web browser: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-8936 being exploited?

CVE-2017-8936 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-2017-8936 affect?

CVE-2017-8936 affects dolphin web browser. Severity is medium (CVSS 5.9). The MoboTap Dolphin Web Browser - Fast Private Internet Search app 9.23.0 through 9.23.2 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information

How urgent is CVE-2017-8936?

Priority 38/100. Remotely exploitable, no login, no user action

Software pages

iOS vulnerabilities

References

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