CVE-2016-9841

CRITICAL
9.8
CVSS Score
Published: May 23, 2017 at 03:56 AM UTC
Updated: October 8, 2026 at 10:16 PM UTC
40 products affected across 10 vendorsmacOSDebian LinuxiPhone OS

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Severity
CRITICAL9.8
Exploit prediction
EPSS 8%
SSVC
No known exploit

Description

inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 11*
Affected range stops below 11, so it looks safe — our inference, not a vendor statement
10.0.0 ≤ v < 10.13.0*
Affected range stops below 10.13.0, so it looks safe — our inference, not a vendor statement
v < 11.0*
Affected range stops below 11.0, so it looks safe — our inference, not a vendor statement
v < 4*
Affected range stops below 4, so it looks safe — our inference, not a vendor statement
v ≥ 7.3v ≥ 9.5*
11.0.0 ≤ v ≤ 11.70.1*

SSVC — Action Prioritization

SSVCNo known exploitAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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