CVE-2016-2070: n/a vulnerability

CVE-2016-2070: The tcp_cwnd_reduction function in net/ipv4/tcp_input.c in the Linux kernel before 4.3.5 allows remote atta...

The tcp_cwnd_reduction function in net/ipv4/tcp_input.c in the Linux kernel before 4.3.5 allows remote attackers to cause a denial of service (divide-by-zero error and system crash) via crafted TCP traffic.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 23:17 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-2070 is a Linux kernel TCP flaw that can let a remote attacker crash an affected system with crafted TCP traffic. The public record describes denial of service only, not data theft or code execution. The issue was fixed upstream before Linux 4.3.5. Exposure is most relevant for systems running vulnerable Linux kernels before 4.3.5 or downstream builds without the backported fix. Any network-reachable host processing TCP traffic could be in scope. Vendor package status is not fully established in the provided sources. Treat this as a service-availability risk, especially for internet-facing Linux systems. It does not appear to be a breach-enabling vulnerability from the provided sources, but a kernel crash can still cause business disruption. Mitigation focus: Upgrade to Linux kernel 4.3.5 or a vendor-supported kernel containing the upstream fix.; Check Linux distribution advisories for backported fixes matching CVE-2016-2070.; Prioritize externally reachable servers and critical network infrastructure first..

Prepared: Jun 13, 2026, 14:44 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 2, 2016, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/torvalds/linux/commit/8b8a321ff72c785ed5e8b4cf6eda20b35d427390CVE reference · x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1302219CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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