CVE-2023-36481Network attack vector

Service hang via inconsistent PPP length handling

Published Aug 28, 2023 · Updated Oct 2, 2024

Denial of service in affected Samsung Exynos mobile and wearable processors allows remote attackers to hang PPP processing. The PPP processing logic fails to reconcile inconsistent length parameters and enters an infinite loop. Successful exploitation requires unauthenticated network reachability to the affected PPP path and interrupts processing without reported data access or modification.

CVSS severity7.5
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in affected Samsung Exynos mobile and wearable processors allows remote attackers to hang PPP processing. The PPP processing logic fails to reconcile inconsistent length parameters and enters an infinite loop. Successful exploitation requires unauthenticated network reachability to the affected PPP path and interrupts processing without reported data access or modification.

The record

CVE
CVE-2023-36481
Published
Aug 28, 2023
Updated
Oct 2, 2024
Vendor
Samsung Electronics
Product
Exynos
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1080
  2. Affected versionversion=1280
  3. Affected versionversion=1330
  4. Affected versionversion=1380
  5. Affected versionversion=2100
  6. Affected versionversion=2200
  7. Affected versionversion=850
  8. Affected versionversion=9110
  9. Affected versionversion=9610
  10. Affected versionversion=980
  11. Affected versionversion=9810
  12. Affected versionversion=9820
  13. Affected versionversion=w920

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Samsung Electronics · Exynosversion=1080; version=1280; version=1330; version=1380; version=2100; version=2200; version=850; version=9110; version=9610; version=980; version=9810; version=9820; version=w920

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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