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CVE-2023-50807: A vulnerability was discovered in Samsung Wearable Processor and Modems with versions Exynos 9110, Exynos Mode

42
This month
HIGH 8.1REMOTEMITIGATEMITIGATEMITIGATE

CVE-2023-50807 is a high-severity flaw (CVSS 8.1) affecting exynos 9110 firmware, exynos modem 5123 firmware, exynos modem 5300 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was discovered in Samsung Wearable Processor and Modems with versions Exynos 9110, Exynos Modem 5123, Exynos Modem 5300 that allows an out-of-bounds write in the heap in 2G (no auth).

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

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

Risk facts

CVSS score8.1 (High)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance0.4% (top 64%)
CISA exploited listNo
WeaknessCWE-787
Published2024-07-09
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: samsung

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

Am I affected?

Timeline

samsung exynos 9110 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
samsung exynos modem 5123 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
samsung exynos modem 5300 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
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-2023-50807?

exynos 9110 firmware: mitigate or apply the listed mitigation; exynos modem 5123 firmware: mitigate or apply the listed mitigation; exynos modem 5300 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-50807 being exploited?

CVE-2023-50807 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-2023-50807 affect?

CVE-2023-50807 affects exynos 9110 firmware, exynos modem 5123 firmware, exynos modem 5300 firmware. Severity is high (CVSS 8.1). A vulnerability was discovered in Samsung Wearable Processor and Modems with versions Exynos 9110, Exynos Modem 5123, Exynos Modem 5300 that allows an out-of-bounds write in the heap in 2G (no auth).

How urgent is CVE-2023-50807?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

Software pages

Samsung vulnerabilities

Related CVEs

References

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