What is CVE-2002-1347?

CVE-2002-1347 is a critical-severity vulnerability in Apple Mac OS X, classified under Incorrect Calculation of Buffer Size. CVSS score: 9.8/10. Published 2002-12-18.

How severe is CVE-2002-1347?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Apple Mac OS X

CVE-2002-1347

Multiple buffer overflows in Cyrus SASL library 2.1.9 and earlier allow remote attackers to cause a denial of service and possibly execute arbitrary code via (1) long inputs during user name canonicalization, (2) characters that need to be escaped during LDAP authentication using saslauthd, or (3) an off-by-one error in the log writer, which does not allocate space for the null character that terminates a string.

Published 2002-12-18 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.071 (94.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.071 · newest: 0.071 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-131 — Incorrect Calculation of Buffer Size

References

exchange.xforce.ibmcloud.com/vulnerabilities/10812 (VDB Entry, Third Party Advisory, vdb-entry)
archives.neohapsis.com/archives/linux/suse/2002-q4/1275.html (vendor-advisory, Broken Link)
distro.conectiva.com/atualizacoes/ (vendor-advisory, Broken Link)
www.securityfocus.com/bid/6349 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
marc.info/ (mailing-list, Patch, Mailing List)
www.debian.org/security/2002/dsa-215 (vendor-advisory, Broken Link)
exchange.xforce.ibmcloud.com/vulnerabilities/10811 (VDB Entry, Third Party Advisory, vdb-entry)
www.securityfocus.com/bid/6348 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
lists.apple.com/archives/security-announce/2005/Mar/msg00000.html (vendor-advisory, Mailing List)
www.securityfocus.com/bid/6347 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)

Frequently asked questions

What is CVE-2002-1347?: CVE-2002-1347 is a critical-severity vulnerability in Apple Mac OS X, classified under Incorrect Calculation of Buffer Size. CVSS score: 9.8/10. Published 2002-12-18.
How severe is CVE-2002-1347?: Critical severity. CVSS v3 base score is 9.8 out of 10.