Vulnerability record · CVE-2008-4392 · published 19 February 2009

CVE-2008-4392: D.j.bernstein djbdns race condition vulnerability

DD.J.Bernstein · Djbdns

dnscache in Daniel J. Bernstein djbdns 1.05 does not prevent simultaneous identical outbound DNS queries, which makes it easier for remote attackers to spoof DNS responses, as demonstrated by a spoofed A record in the Additional section of a response to a Start of Authority (SOA) query.

6.4 CVSS 2.0 Medium EPSS 1.7% · top 23.8% CWE-362 · Race condition

6.4CVSS 2.0 base score

1.7%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

10References

16 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

DDjbdns D.J.Bernstein

References

Link	Tags
http://secunia.com/advisories/33855	Vendor Advisory
http://www.securityfocus.com/bid/33818
http://www.your.org/dnscache/	PatchVendor Advisory
http://www.your.org/dnscache/djbdns.pdf	Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/48807
http://secunia.com/advisories/33855	Vendor Advisory
http://www.securityfocus.com/bid/33818
http://www.your.org/dnscache/	PatchVendor Advisory
http://www.your.org/dnscache/djbdns.pdf	Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/48807

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2008-4392), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.