What is CVE-2016-5696?

CVE-2016-5696 is a medium-severity vulnerability in Google Android, classified under Information Disclosure. CVSS score: 4.8/10. Published 2016-08-06.

How severe is CVE-2016-5696?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2016-5696 known to be exploited?

15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Google Android

CVE-2016-5696

net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.

Vulnerability class: Information Disclosure

Published 2016-08-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.151 (96.6th percentile), scored 2026-10-02.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.151 · newest: 0.151 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

References

www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html (Vendor Advisory)
github.com/Gnoxter/mountain_goat (Exploit, Third Party Advisory)
www.ubuntu.com/usn/USN-3070-1 (vendor-advisory)
rhn.redhat.com/errata/RHSA-2016-1657.html (vendor-advisory)
bto.bluecoat.com/security-advisory/sa131
github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758 (Patch, Issue Tracking)
www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (Third Party Advisory)
rhn.redhat.com/errata/RHSA-2016-1814.html (vendor-advisory)
kc.mcafee.com/corporate/index
source.android.com/security/bulletin/2016-10-01.html (Third Party Advisory)

Frequently asked questions

What is CVE-2016-5696?: CVE-2016-5696 is a medium-severity vulnerability in Google Android, classified under Information Disclosure. CVSS score: 4.8/10. Published 2016-08-06.
How severe is CVE-2016-5696?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2016-5696 known to be exploited?: 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.