CVE-2021-43419: An Information Disclosure vulnerability exists in Opay Mobile application 1.5.1.26 and maybe be higher in the

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HIGH 7.5REMOTEDOWNGRADE

CVE-2021-43419 is a high-severity flaw (CVSS 7.5) affecting opay. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Information Disclosure vulnerability exists in Opay Mobile application 1.5.1.26 and maybe be higher in the logcat app.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-778
Published	2023-11-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: opayweb

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

Am I affected?

Timeline

2023-11-07 21:15 UTCPublished CVE record published
2026-06-17 04:10 UTCUpdated Record last modified

opayweb opay DOWNGRADE

Affected: 1.5.1.26

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.1.26

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.5.1.26 (Debian / Ubuntu)

apt-cache madison opay sudo apt install opay=<VERSION_BEFORE_1.5.1.26> sudo apt-mark hold opay

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

dnf --showduplicates list opay sudo dnf downgrade opay-<VERSION_BEFORE_1.5.1.26> sudo dnf versionlock add opay

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-2021-43419?

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

Is CVE-2021-43419 being exploited?

CVE-2021-43419 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-2021-43419 affect?

CVE-2021-43419 affects opay. Severity is high (CVSS 7.5). An Information Disclosure vulnerability exists in Opay Mobile application 1.5.1.26 and maybe be higher in the logcat app.

How urgent is CVE-2021-43419?

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

References

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