BIND 8.x through 8.3.3 allows remote attackers to cause a denial of service (crash) via SIG RR elements with invalid expiry times, which are removed from the internal BIND database and later cause a null dereference.
CVE-2002-1221
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 8%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 93.8%
- KEV
- Not listed
Published
November 29, 2002
Last Modified
June 16, 2026
References (32)
- cve@mitrehttp://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21469
- cve@mitrehttp://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000546
- cve@mitrehttp://lists.apple.com/archives/Security-announce/2002/Nov/msg00000.html
- cve@mitrehttp://marc.info/?l=bugtraq&m=103713117612842&w=2
- cve@mitrehttp://marc.info/?l=bugtraq&m=103763574715133&w=2
- cve@mitrehttp://online.securityfocus.com/advisories/4999
- cve@mitrehttp://online.securityfocus.com/archive/1/300019
- cve@mitrehttp://www.cert.org/advisories/CA-2002-31.html
- cve@mitrehttp://www.ciac.org/ciac/bulletins/n-013.shtml
- cve@mitrehttp://www.debian.org/security/2002/dsa-196
- cve@mitrehttp://www.isc.org/products/BIND/bind-security.html
- cve@mitrehttp://www.kb.cert.org/vuls/id/581682
- cve@mitrehttp://www.linux-mandrake.com/en/security/2002/MDKSA-2002-077.php
- cve@mitrehttp://www.securityfocus.com/bid/6159
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/10333
Frequently asked(4)
What is CVE-2002-1221?
CVE-2002-1221 is a none vulnerability published on November 29, 2002. BIND 8.x through 8.3.3 allows remote attackers to cause a denial of service (crash) via SIG RR elements with invalid expiry times, which are removed from the internal BIND database and later cause a null dereference.
When was CVE-2002-1221 disclosed?
CVE-2002-1221 was first published in the National Vulnerability Database on November 29, 2002, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2002-1221 actively exploited?
CVE-2002-1221 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 93.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2002-1221?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2002-1221, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2002-1221
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