CVE-2023-49928
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 · uneditedAn issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 9110, Exynos W920, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check states specified by the RRC. This can lead to disclosure of sensitive information.
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 confidenceA vulnerability in Samsung Exynos baseband processors (mobile, wearable, and modem chipsets) allows improper state checking of RRC (Radio Resource Control) messages, potentially leading to disclosure of sensitive information. The baseband software fails to validate states specified by the RRC protocol, which could be exploited to access sensitive data during cellular communications.
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 versionsall versionsall versionsall versionsall versionsall versionsall versionsall 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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Identify your device's Exynos chipset modelCheck the processor/chipset information through your device settings (Settings > About Phone > Chipset or Processor) or by running 'getprop ro.hardware' or 'cat /proc/cpuinfo' via ADB shellAffected if The chipset matches one of the affected models: Exynos 9820, 9825, 980, 990, 850, 1080, 2100, or 2200
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Check the baseband/modem firmware versionNavigate to Settings > About Phone > Software Information > Baseband version, or use 'getprop gsm.version.baseband' via ADB shell. Compare the version against vendor release notes.Affected if The baseband version is present and the device uses one of the affected Exynos chipsets listed above (all versions are affected)
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Verify cellular connectivity is enabledConfirm the device has cellular/Radio functionality active - check that the SIM is inserted and mobile data or cellular voice services are available. Inspect via Settings > Network & Internet > SIM cards or 'getprop gsm.sim.state' via ADB shell.Affected if Cellular services are active, as the vulnerability is exploitable through RRC (Radio Resource Control) messages during cellular communications
Your device is likely affected if it contains any of the listed Exynos chipsets (9820, 9825, 980, 990, 850, 1080, 2100, 2200) and has cellular connectivity enabled, since all firmware versions for these models are vulnerable.
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 vendor firmware/security updates from Samsung for affected Exynos chipsets. Users should ensure their devices receive the latest security patches through carrier or OEM update channels.
- Consultation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-49928 — 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-2023-49928 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
- No spam, self-promotion, credentials, or personal data