HOMEVULNERABILITIESCVE-2016-1583
HIGHPOC

CVE-2016-1583

CWE-119Published: June 27, 2016· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling.

NVD Source

Technical Analysis

CVE-2016-1583 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

A proof-of-concept (PoC) exploit exists for CVE-2016-1583. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Linux1 product(s)
linux kernel
novell7 product(s)
suse linux enterprise software development kitsuse linux enterprise debuginfosuse linux enterprise desktopsuse linux enterprise live patchingsuse linux enterprise module for public cloudsuse linux enterprise serversuse linux enterprise workstation extension
Source: NVD CPE · 15 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (100)

Quick Facts

CVE IDCVE-2016-1583
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-119
CISA KEVNo
ExploitPOC
Affected4 vendor(s)
PublishedJun 27, 2016

Related CVEs (CWE-119)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2016-1583 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.