CVE-2023-35661Network attack vector

Remote memory disclosure via unchecked TCP SACK option

Published Oct 11, 2023 · Updated Sep 18, 2024

Out-of-bounds read in the Android Pixel modem allows remote attackers to disclose memory through a crafted TCP SACK option. ProfSixDecomTcpSACKoption in RohcPacketCommon.cpp reads the option without checking that the operation remains within the packet buffer. Exploitation requires no privileges or user interaction and exposes memory beyond the malformed option during modem packet processing.

CVSS severity7.5
High
EPSS probability0.36%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the Android Pixel modem allows remote attackers to disclose memory through a crafted TCP SACK option. ProfSixDecomTcpSACKoption in RohcPacketCommon.cpp reads the option without checking that the operation remains within the packet buffer. Exploitation requires no privileges or user interaction and exposes memory beyond the malformed option during modem packet processing.

The record

CVE
CVE-2023-35661
Published
Oct 11, 2023
Updated
Sep 18, 2024
Vendor
Google
Product
Android
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=Android kernel

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google · Androidversion=Android kernel

Published CVSS scores

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

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.

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No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

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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