peter bassill · operator
$ cve CVE-2002-0059 JSON

CVE-2002-0059

9.8
CRITICAL · CVSS 3.1 · EPSS 9.7% (pctl 95)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

Description

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.

Scoring

CVSS9.8 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS9.69% — more likely to be exploited than 95% of all CVEs
WeaknessCWE-415
On CISA KEVno
Public exploitnone known
Published2002-03-15
Last modified2026-06-16

Affected (1)

VendorProduct
zlibzlib

References

→ the Explorer  ·  watch your stack  ·  NVD