Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2002-0059

35
FAUCET Score

CVE-2002-0059 describes a critical double-free vulnerability in zlib versions 1.1.3 and earlier, impacting numerous utilities and packages that utilize its decompression algorithm. This flaw allows local and remote attackers to execute arbitrary code by supplying specially crafted compressed data. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.3CPE matchmatch criteria
cpe:2.3:a:zlib:zlib:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
9.51%
Probability of exploitation in next 30 days
EPSS Percentile
94.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0951 is in the 90th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Linux 6.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Powertools 6.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Powertools 7.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Powertools 7.1
View patch

Vendor Advisories (1)

redhatCVE-2002-0059Moderate

zlib: Double free in inflateEnd

Mar 9, 2002

References

ftp.caldera.com / pub/security/OpenLinux/CSSA-2002-015.1.txt
Broken Link
distro.conectiva.com.br / atualizacoes
Broken Link
frontal2.mandriva.com / security/advisories
Broken Link
exchange.xforce.ibmcloud.com / vulnerabilities/8427
Third Party AdvisoryVDB Entry
www1.itrc.hp.com / service/cki/docDisplay.do
Broken Link
www1.itrc.hp.com / service/cki/docDisplay.do
Broken Link
www1.itrc.hp.com / service/cki/docDisplay.do
Broken Link
caldera.com / support/security/advisories/CSSA-2002-014.1.txt
Broken Link
cert.org / advisories/CA-2002-07.html
Third Party AdvisoryUS Government Resource
debian.org / security/2002/dsa-122
Broken Link
kb.cert.org / vuls/id/368819
Third Party AdvisoryUS Government Resource
linux-mandrake.com / en/security/2002/MDKSA-2002-023.php
Broken LinkPatchVendor Advisory
linux-mandrake.com / en/security/2002/MDKSA-2002-024.php3
Broken Link
redhat.com / support/errata/RHSA-2002-026.html
Broken LinkPatchVendor Advisory
redhat.com / support/errata/RHSA-2002-027.html
Broken LinkPatchVendor Advisory
securityfocus.com / bid/4267
Broken LinkThird Party AdvisoryVDB Entry