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Fencer Intel
critical 9.8

CVE-2003-0545 in the critical feed json

Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code…

published 23y ago modified 4mo ago also EUVD-2003-0539

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
87.5%
EPSS 87.5% chance of exploitation in 30 days, percentile 99.7%
public exploits
0
none known

Summary

Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an SSL client certificate with a certain invalid ASN.1 encoding.

Patch / fix

  • openssl Debian 14, Debian 13, Debian 12 0.9.7c

debian advisories DEBIAN-CVE-2003-0545

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2003-0545 updated

CAN-2003-0543/0544 OpenSSL ASN.1 protocol crashes

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

87.50% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-14).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.