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Including CVEs outside Waratek scope✕Vendor zlib✕
Overview 16 matches · 0 in Waratek scope · 0 protected · 0 exploited · 0 CISA KEV · 1 public PoC · 1 EPSS ≥ 0.5
16matches 0in Waratek scope0.0% 0protected0.0% 0exploited0.0% 0CISA KEV0.0% 1public PoC6.2% 1EPSS ≥ 0.56.2%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0% Outside Waratek scope 4 25.0% Not applicable 12 75.0% Withdrawn CVE 0 0.0%
Critical 5 31.2% High 5 31.2% Medium 5 31.2% Low 1 6.2% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 16 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 0 0.0% Working exploit published 1 6.2% Proof of concept only 4 25.0% Forecast only 0 0.0% No public exploit 11 68.8%
split by peak 4 / year
Not applicable: 12Outside Waratek scope: 4 Low: 1Medium: 5High: 5Critical: 5 not blocked: 16 No public exploit: 11Proof of concept only: 4Working exploit published: 1
20021 Not applicable1 Critical1 not blocked1 No public exploit1 20031 Not applicable1 High1 not blocked1 Working exploit published1 20041 Not applicable1 Low1 not blocked1 No public exploit1 20052 Not applicable2 High1 Medium1 not blocked2 No public exploit2 20060 20070 20080 20090 20100 20110 20120 20130 20141 Not applicable1 Medium1 not blocked1 No public exploit1 20151 Not applicable1 Medium1 not blocked1 No public exploit1 20160 20174 Outside Waratek scope2 Not applicable2 Critical2 High2 not blocked4 No public exploit4 20180 20190 20200 20210 20222 Outside Waratek scope2 Critical1 High1 not blocked2 Proof of concept only2 20231 Not applicable1 Critical1 not blocked1 No public exploit1 20240 20250 20262 Not applicable2 Medium2 not blocked2 Proof of concept only2
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CVE Severity Published▾ Status Exploitation Description
CVE-2026-27171 Medium 2026-02-18 Not applicable Proof of concept only 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.
CVE-2026-22184 Medium 2026-01-07 Not applicable Proof of concept only zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer.
CVE-2023-45853 Critical 2023-10-14 Not applicable No public exploit 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. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.
CVE-2022-37434 Critical 2022-08-05 Outside Waratek scope Proof of concept only 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. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).
CVE-2018-25032 High 2022-03-25 Outside Waratek scope Proof of concept only zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.
CVE-2016-9843 Critical 2017-05-23 Outside Waratek scope No public exploit The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.
CVE-2016-9842 High 2017-05-23 Not applicable No public exploit The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.
CVE-2016-9841 Critical 2017-05-23 Not applicable No public exploit inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
CVE-2016-9840 High 2017-05-23 Outside Waratek scope No public exploit inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
CVE-2015-1191 Medium 2015-01-21 Not applicable No public exploit Multiple directory traversal vulnerabilities in pigz 2.3.1 allow remote attackers to write to arbitrary files via a (1) full pathname or (2) .. (dot dot) in an archive.
CVE-2013-0296 Medium 2014-04-27 Not applicable No public exploit Race condition in pigz before 2.2.5 uses permissions derived from the umask when compressing a file before setting that file's permissions to match those of the original file, which might allow local users to bypass intended access permissions while compression is occurring.
CVE-2005-1849 Medium 2005-07-26 Not applicable No public exploit inftrees.h in zlib 1.2.2 allows remote attackers to cause a denial of service (application crash) via an invalid file that causes a large dynamic tree to be produced.
CVE-2005-2096 High 2005-07-06 Not applicable No public exploit zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an incomplete code description of a length greater than 1, which leads to a buffer overflow, as demonstrated using a crafted PNG file.
CVE-2004-0797 Low 2004-10-20 Not applicable No public exploit The error handling in the (1) inflate and (2) inflateBack functions in ZLib compression library 1.2.x allows local users to cause a denial of service (application crash).
CVE-2003-0107 High 2003-03-07 Not applicable Working exploit published Buffer overflow in the gzprintf function in zlib 1.1.4, when zlib is compiled without vsnprintf or when long inputs are truncated using vsnprintf, allows attackers to cause a denial of service or possibly execute arbitrary code.
CVE-2002-0059 Critical 2002-03-15 Not applicable No public exploit The decompression algorithm in zlib 1.1.3 and earlier, as used in many different utilities and packages, causes inflateEnd to release certain memory more than once (a "double free"), which may allow local and remote attackers to execute arbitrary code via a block of malformed compression data.