CVE-2016-5696

medium
Published 2016-08-06 ยท Modified 2026-05-06
CVSS v3
4.8
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
4.8

Description

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.

Predictions

Exploit likelihood
58%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OSVersionStatusFixed in
suse slesaffected
debian debianbookwormfixed4.7.2-1
debian debianbullseyefixed4.7.2-1
debian debianforkyfixed4.7.2-1
debian debiansidfixed4.7.2-1
debian debiantrixiefixed4.7.2-1
linux linux-kernelaffected

Application impact

VendorProductVersionsFixed
oracle oraclevm_server3.3
oracle oraclevm_server3.4

References

CWEs

CWE-200

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.