CRITICAL
CVE-2016-9841
NVD-CWE-noinfoPublished: May 23, 2017· Updated: Jul 14, 2026
9.8
CVSS v3.1
Official Description
inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
Technical Analysis
CVE-2016-9841 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
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 9.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
Apple4 product(s)
iphone osmac os xtvoswatchos
Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
netapp20 product(s)
active iq unified managercloud backupe-series santricity managemente-series santricity os controllere-series santricity storage managere-series santricity web servicesoncommand balanceoncommand insightoncommand performance manageroncommand shiftoncommand unified manageroncommand workflow automation+8
Node.js1 product(s)
node.js
openSUSE2 product(s)
leapopensuse
Oracle4 product(s)
database serverjdkjremysql
Red Hat5 product(s)
satelliteenterprise linux desktopenterprise linux eusenterprise linux serverenterprise linux workstation
zlib1 product(s)
zlib
Source: NVD CPE · 50 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
All References (67)
Quick Facts
CVE IDCVE-2016-9841
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected9 vendor(s)
PublishedMay 23, 2017
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-9841 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. CVE data is provided under the NVD usage policy.