CVE-2021-42111: An issue was discovered in the RCDevs OpenOTP app 1.4.13 and 1.4.14 for iOS

Routine

MEDIUM 5.5DOWNGRADE

CVE-2021-42111 is a medium-severity flaw (CVSS 5.5) affecting openotp token. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in the RCDevs OpenOTP app 1.4.13 and 1.4.14 for iOS. If it is installed on a jailbroken device, it is possible to retrieve the PIN code used to access the application. The IOS app version 1.4.1631262629 resolves this issue by storing a hash PIN code.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Published	2021-11-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rcdevs

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

Am I affected?

Timeline

2021-11-10 19:15 UTCPublished CVE record published
2026-06-17 04:09 UTCUpdated Record last modified

rcdevs openotp token DOWNGRADE

Affected: 1.4.13 · 1.4.14

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.13

1. Check installed version

apt-cache policy openotp-token || rpm -q openotp-token || openotp-token --version

2. No fixed release: DOWNGRADE to a release before 1.4.13 (Debian / Ubuntu)

apt-cache madison openotp-token sudo apt install openotp-token=<VERSION_BEFORE_1.4.13> sudo apt-mark hold openotp-token

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

dnf --showduplicates list openotp-token sudo dnf downgrade openotp-token-<VERSION_BEFORE_1.4.13> sudo dnf versionlock add openotp-token

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-2021-42111?

openotp token: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-42111 being exploited?

CVE-2021-42111 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-2021-42111 affect?

CVE-2021-42111 affects openotp token. Severity is medium (CVSS 5.5). An issue was discovered in the RCDevs OpenOTP app 1.4.13 and 1.4.14 for iOS. If it is installed on a jailbroken device, it is possible to retrieve the PIN code used to access the application. The IOS app version 1.4.1631262629 resolves this

How urgent is CVE-2021-42111?

Priority 23/100. No elevated risk signals yet.

Software pages

iOS vulnerabilities

References

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