CVE records

Every CVE as the CVE Program publishes it, refreshed every ten minutes, with NVD's analysis, CISA's known-exploited status and a healthcare tag. Subscribers get the CVEs that match their own systems on My program, by email as they are published. Where the data comes from: sources.

Updated under an hour ago (2026-10-19 07:23 UTC)

What this means for you

This week: 5,443 CVEs published, 355 critical, and 7 newly confirmed exploited. Add your stack to see whether any of them hit you.

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This week's critical CVEs

Exploited in the last 30 days

Published in the last 7 days: 5,443; Show in the list
Critical, last 7 days: 355; Show in the list
Healthcare-tagged, last 7 days: 4; Show in the list
Known exploited (CISA KEV): 1,747; Show in the list

Showing CVEs that name the product zlib:zlib. Show all products

9 CVEs, showing 1 to 9

CVE	Severity	Title	Published
CVE-2026-85091	High 7.4	zlib 1.3.1.2 through 1.3.2 Heap Buffer Overflow via gz_vacate Assigned by VulnCheck	Sep 3, 2026
CVE-2026-76844	High 7.4	zlib 1.2.11 through 1.3.2 Heap Buffer Overflow via Stale gzwrite Pointer After Failed Write Assigned by VulnCheck	Aug 24, 2026
CVE-2026-27171	Medium 5.5	zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.	Feb 18, 2026
CVE-2026-22184	High 7.8	zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz.	Jan 7, 2026
CVE-2023-45853	High 8.8	MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. Assigned by mitre	Oct 14, 2023
CVE-2022-37434	Critical 9.8	zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. Assigned by mitre	Aug 5, 2022
CVE-2018-25032	High 7.5	zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches. Assigned by mitre	Mar 25, 2022
CVE-2016-9841	Critical 9.8	inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic. Assigned by microfocus	May 23, 2017
CVE-2016-9840	High 8.8	inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic. Assigned by microfocus	May 23, 2017

CVSS is the assigning CNA's score where it gives one, otherwise NVD's. The healthcare tag is a documented heuristic (a list of clinical and health IT vendors, and clinical terms in the description), not a classification. The CVE record is authoritative.