zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an…

Description

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.

Scores

EPSS (exploitation in 30 days)

5.6% · top 7.0% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (55)

• 101989 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• DSA-1026 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 17236 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20071018 Official Windows binaries of "curl" contain vulnerable zlib 1.2.2 (CAN-2005-2096) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• hpux-secure-shell-dos(24064) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• APPLE-SA-2008-11-13 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• 15949 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-797 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• GLSA-200509-18 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• 1014398 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• MDKSA-2005:196 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• oval:org.mitre.oval:def:1542 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 20070404 VMSA-2007-0003 VMware ESX 3.0.1 and 3.0.0 server security updates (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• USN-151-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• oval:org.mitre.oval:def:1262 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 20071021 Re: Windows binary of "GSview 4.8" contain vulnerable zlib (CAN-2005-2096) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 18507 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 17054 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• USN-148-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 14162 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• http://www.vmware.com/support/vi3/doc/esx-9916286-patch.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• HPSBUX02090 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• 31492 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• MDKSA-2006:070 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• RHSA-2008:0629 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 17225 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2007-1267 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://www.vmware.com/support/vi3/doc/esx-3616065-patch.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• 18406 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20071029 Windows binary of "Virtual Floppy Drive 2.1" contains vulnerable zlib (CAN-2005-2096) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 24788 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• MDKSA-2005:112 (opens in a new tab)vendor-advisoryx_refsource_MANDRAKEx_transferred
• 32706 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:11500 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 17326 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2005-0978 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 20071018 Windows binary of "GSview 4.8" contain vulnerable zlib (CAN-2005-2096) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 20071029 Re: Windows binary of "GSview 4.8" contain vulnerable zlib (CAN-2005-2096) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• APPLE-SA-2005-08-15 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• 17516 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-740 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• ADV-2006-0144 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://support.apple.com/kb/HT3298 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=162391 (opens in a new tab)x_refsource_MISCx_transferred
• RHSA-2005:569 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• GLSA-200507-05 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• 19597 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://support.avaya.com/elmodocs2/security/ASA-2006-016.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
• 19550 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 18377 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• APPLE-SA-2005-08-17 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• FLSA:162680 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• VU#680620 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
• 20071020 Re: Windows binary of "GSview 4.8" contain vulnerable zlib (CAN-2005-2096) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• https://cert-portal.siemens.com/productcert/html/ssa-470355.html (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2005-2096](https://trackcve.app/badge/CVE-2005-2096.svg)](https://trackcve.app/cve/CVE-2005-2096)

Record last updated 14 Jul 2026, 11:44 UTC.