CVE-2015-8546Public exploitNetwork attack vector

Remote code execution via baseband stack overflow

Published Apr 10, 2020 · Updated Aug 6, 2024

Stack-based buffer overflow in Samsung Shannon333 baseband software through 2015-11-12 allows remote attackers to execute arbitrary code. The CC_decodeProgressInd handler fails to bound attacker-controlled over-the-air Layer 3 call-control data before writing it to a stack buffer. A fake cellular base station can trigger the flaw without authentication or user interaction on Galaxy S6, S6 Edge, S6 Edge+, and Note5 devices using the chipset.

CVSS severity9.8
Critical
EPSS probability1.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Samsung Shannon333 baseband software through 2015-11-12 allows remote attackers to execute arbitrary code. The CC_decodeProgressInd handler fails to bound attacker-controlled over-the-air Layer 3 call-control data before writing it to a stack buffer. A fake cellular base station can trigger the flaw without authentication or user interaction on Galaxy S6, S6 Edge, S6 Edge+, and Note5 devices using the chipset.

The record

CVE
CVE-2015-8546
Published
Apr 10, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C

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 exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

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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