CVE-2022-26579
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedPAX A930 device with PayDroid_7.1.1_Virgo_V04.3.26T1_20210419 can allow a root privileged attacker to install unsigned packages. The attacker must have shell access to the device and gain root privileges in order to exploit this vulnerability.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe PAX A930 payment terminal running PayDroid_7.1.1_Virgo_V04.3.26T1_20210419 contains a vulnerability that allows an attacker with existing shell access and root privileges to bypass signature verification and install unsigned application packages, potentially leading to malicious code execution on the device.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 7.1.1_virgo_v04.3.26t1_20210419CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the device modelCheck the PAX A930 terminal model number in the system settings or on the device labelAffected if Device is not a PAX A930 terminal - the vulnerability only affects this specific model
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Check the PayDroid firmware versionNavigate to Settings > About Phone > Build Number or use 'getprop ro.build.display.id' via ADB or shell to retrieve the exact firmware version stringAffected if The version string is NOT exactly '7.1.1_virgo_v04.3.26t1_20210419' - only this precise version is affected
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Verify shell access existsAttempt to open a shell via ADB (adb shell) or check if a terminal emulator app is accessible on the deviceAffected if Shell access is available to any non-privileged user - the attacker needs this initial access point
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Confirm root privilege escalationCheck if the 'su' command functions or if root access is obtainable via 'id' command output showing uid=0Affected if Root privileges (uid=0) are accessible - the vulnerability requires root to bypass signature verification
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Test unsigned package installation capabilityAttempt to install a test unsigned APK using 'pm install -r -g /path/to/test.apk' or check the package installer settings for signature verification enforcementAffected if Unsigned APKs can be installed without signature verification failure - the bypass is confirmed
You are affected only if you have a PAX A930 terminal running exactly version 7.1.1_virgo_v04.3.26t1_20210419 AND an attacker already has shell access with root privileges on that device.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply any vendor-supplied firmware updates for PayDroid; restrict physical and network access to terminals to prevent unauthorized shell access and root privilege escalation.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-26579 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-26579 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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