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CVE-2002-1221

17
FAUCET Score

CVE-2002-1221 describes a denial-of-service vulnerability affecting BIND versions 8.x through 8.3.3. Remote attackers can exploit this by sending SIG RR elements with invalid expiry times, leading to a null dereference and a crash of the BIND service. This vulnerability has a CVSS score of 5.0, indicating a medium severity, with a low attack complexity and no authentication required, resulting in a partial availability impact. There is no evidence of active exploitation, nor is exploit code publicly available in Metasploit, Nuclei, or ExploitDB, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
8.1CPE matchmatch criteria
cpe:2.3:a:isc:bind:8.1:*:*:*:*:*:*:*
8.1.1CPE matchmatch criteria
cpe:2.3:a:isc:bind:8.1.1:*:*:*:*:*:*:*
8.1.2CPE matchmatch criteria
cpe:2.3:a:isc:bind:8.1.2:*:*:*:*:*:*:*
8.2CPE matchmatch criteria
cpe:2.3:a:isc:bind:8.2:*:*:*:*:*:*:*
8.2.1CPE matchmatch criteria
cpe:2.3:a:isc:bind:8.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
7.57%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0757 is in the 92nd percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

bvlive01.iss.net / issEn/delivery/xforce/alertdetail.jsp
PatchVendor Advisory
distro.conectiva.com.br / atualizacoes
lists.apple.com / archives/Security-announce/2002/Nov/msg00000.html
marc.info
marc.info
online.securityfocus.com / advisories/4999
online.securityfocus.com / archive/1/300019
exchange.xforce.ibmcloud.com / vulnerabilities/10333
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2094
cert.org / advisories/CA-2002-31.html
US Government Resource
ciac.org / ciac/bulletins/n-013.shtml
debian.org / security/2002/dsa-196
isc.org / products/BIND/bind-security.html
PatchVendor Advisory
kb.cert.org / vuls/id/581682
US Government Resource
linux-mandrake.com / en/security/2002/MDKSA-2002-077.php
securityfocus.com / bid/6159