CVE-2023-48398
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 ProtocolNetAcBarringInfo::ProtocolNetAcBarringInfo() of protocolnetadapter.cpp, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure with baseband firmware compromise required. User interaction is not needed for exploitation.
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 confidenceThis is an out-of-bounds read vulnerability in the baseband firmware's ProtocolNetAcBarringInfo class constructor in protocolnetadapter.cpp. The missing bounds check allows reading memory beyond allocated buffers, leading to remote information disclosure. Exploitation requires prior baseband firmware compromise, indicating this is a secondary vulnerability in a chained attack scenario.
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 dataall versionsCVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Confirm Android OS is runningCheck the device operating system by looking at Settings > About Phone > Android version or running 'getprop ro.build.version.release' in ADB shellAffected if The device is running any version of Google Android OS - all versions are listed as affected
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Identify baseband firmware versionCheck the baseband/modem firmware version via Settings > About Phone > IMEI info or by running 'getprop gsm.version.baseband' in ADB shellAffected if Cannot determine directly from version alone since no fixed version ranges are provided; compare your baseband version against any vendor-specific security advisories if available
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Verify baseband integrityReview any available baseband integrity checks through the device's security settings or use carrier diagnostic tools if accessibleAffected if The baseband firmware shows signs of unauthorized modification or compromise from a prior attack
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Confirm attack chain contextAssess whether the baseband processor has been previously compromised, as this vulnerability is secondary and requires prior baseband firmware compromise for exploitationAffected if The device's baseband firmware has been previously compromised or is under attacker control prior to this vulnerability being exploitable
A user is affected if they are running Google Android and the baseband firmware has been previously compromised, enabling this secondary vulnerability to be chained in an attack.
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 a firmware patch that adds proper bounds validation in the ProtocolNetAcBarringInfo constructor before accessing array indices. If no patch is available, isolate affected devices on network segments to reduce exposure to baseband-level attacks.
Android Security Patch Level 2023-12 or later (verify via source.android.com/security/bulletin)
- 1. Check the Android Security Bulletin for the patch that includes the fix for CVE-2023-48398
- 2. Identify the Android Security Patch Level that contains the fix
- 3. Upgrade your Android device to a system image with the security patch level that includes the fix
- 4. For devices with customizable baseband firmware, contact your device manufacturer to ensure the baseband/modem firmware is also updated
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing16.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,152.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-48398 — 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-2023-48398 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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- 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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