CVE-2023-20707
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 · uneditedIn ril, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07628556; Issue ID: ALPS07628556.
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 · moderate confidenceA missing bounds check in the RIL (Radio Interface Layer) component allows an out-of-bounds write vulnerability. A local attacker with System execution privileges could exploit this to escalate privileges. User interaction is not required.
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= 12.0= 13.0CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/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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Check Android versionRun 'getprop ro.build.version.release' or check Settings > About Phone > Android versionAffected if The version returned is exactly 12.0 or 13.0
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Check if device has cellular radio capabilityRun 'getprop ro.radio.nr.capability' or check for presence of /dev/rild socket or rild process via 'ps -A | grep rild'Affected if Device has cellular capability and uses RIL (most phones do) - absence of cellular would mean not affected
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Check security patch levelRun 'getprop ro.build.version.security_patch' or check Settings > About Phone > Security patch levelAffected if The patch level is earlier than the vendor patch ALPS07628556, or the security patch date is before the fix was released
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Check RIL daemon process statusRun 'ps -A | grep -E "rild|radio"' to confirm the RIL daemon is runningAffected if RIL daemon is active on the device, making the vulnerability applicable
Your device is affected if it runs Android 12.0 or 13.0, has cellular capability with RIL enabled, and lacks the vendor security patch ALPS07628556 that adds proper bounds checking to the RIL component.
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.
dbcve · scopedApply vendor patch ALPS07628556 which adds proper bounds checking to prevent the out-of-bounds write in the RIL component.
Android 12.0/13.0 with July 2023 Security Patch Level or later (containing MediaTek patch ALPS07628556)
- Check the current Android security patch level on the device in Settings > Security > Security patch level
- Verify the device is running a MediaTek chipset (this vulnerability is MediaTek-specific)
- Contact the device OEM or carrier for the specific security update containing patch ALPS07628556
- Apply the latest available Android security update for the device which should include the MediaTek RIL fix
- After updating, verify the security patch level includes the fix date (typically July 2023 or later security bulletin)
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing8.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,712.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-20707 — 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-2023-20707 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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