01 Record

CVE-2016-9841

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

UnratedPUBLISHEDCNA: microfocus

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

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

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 7.55% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 94.0% of scored records. A rank, not a probability.
NVD base score: 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-14.
Red Hat severity: Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published: 2017-05-23 03:56Z9 YR AGO
Last updated: 2026-07-14 11:44Z1 MO AGO
Reserved: 2016-12-05
Assigning CNA: microfocus
Record state: PUBLISHED
Severity: Not rated by the issuing CNA
CNA CVSS vector: Not published by the issuing CNA
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: 07f46269aa830c3ed42411fef56f869760215a330b41887835f4f5fbb7326282