CVE-2017-18660Network attack vector

Unauthenticated memory corruption via tlc_server

Published Apr 7, 2020 · Updated Aug 5, 2024

Buffer overflow in tlc_server on Samsung Android M 6.0 and N 7.x allows attackers to execute code via Binder. The COMM_VIA_ASHMEM command maps shared memory to the send length but copies the response using a larger receive length, overrunning the mapping. An unprivileged local process can invoke this command without the authorization applied to COMM, yielding memory corruption and potentially broader compromise; exploitability of code execution is not established by the public record.

CVSS severity9.8
Critical
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in tlc_server on Samsung Android M 6.0 and N 7.x allows attackers to execute code via Binder. The COMM_VIA_ASHMEM command maps shared memory to the send length but copies the response using a larger receive length, overrunning the mapping. An unprivileged local process can invoke this command without the authorization applied to COMM, yielding memory corruption and potentially broader compromise; exploitability of code execution is not established by the public record.

The record

CVE
CVE-2017-18660
Published
Apr 7, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1068
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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