The DNS protocol, as implemented in (1) BIND 8 and 9 before 9.5.0-P1, 9.4.2-P1, and 9.3.5-P1; (2) Microsoft DNS in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP1 and SP2; and other implementations allow remote attackers to spoof DNS traffic via a birthday attack that uses in-bailiwick referrals to conduct cache poisoning against recursive resolvers, related to insufficient randomness of DNS transaction IDs and source ports, aka "DNS Insufficient Socket Entropy Vulnerability" or "the Kaminsky bug."
CVE-2008-1447
Score elevated to 9.0 because EPSS predicts 87% probability of exploitation within the next 30 days (top 0.6% of all CVEs). NVD baseline CVSS 6.8 retained for reference. Confidence: see factors.
- High exploitation likelihood — EPSS 95%
A fix is available — apply it.
- CVSS v3
- 6.8
- EG Score
- 9.0(high)
- EPSS
- 99.9%
- KEV
- Not listed
Published
July 8, 2008
Last Modified
April 23, 2026
Advisory Details (2)
Auto-updated May 30, 2026#494401 - ruby1.8: New release (1.8.7-p71) with vulnerabilities fixes - Debian Bug report logs
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494401Invisible Denizen: Kaminsky's DNS Issue Accidentally Leaked?
http://blog.invisibledenizen.org/2008/07/kaminskys-dns-issue-accidentally-leaked.htmlPatch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libdns35 (1:9.4.2-10ubuntu0.1) @ hardy | 2026-05-30 | ubuntu |
| ubuntu | dnsmasq-base (2.41-2ubuntu2.1) @ hardy | 2026-05-30 | ubuntu |
| redhat | dnsmasq-0:2.45-1.el5_2.1 | 2008-08-11 | redhat |
| redhat | selinux-policy-0:2.4.6-137.1.el5_2 | 2008-07-08 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(4)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 4× in last 7d / 20× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-09 19:04 UTCEPSS rescore
- 2026-07-08 01:35 UTCOSV refresh
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:03 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-19 13:25 UTCOSV refresh
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:13 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
Show 22 moreShow fewer
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-30 21:08 UTCEG score recompute
- 2026-05-30 21:08 UTCVendor advisory
- 2026-05-30 21:08 UTCGHSA enrichment
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-22 17:43 UTCOSV refresh
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(5 references)Working exploit code is in the public domain (2 Metasploit modules) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-6130✓ verifiedFirst seen Jul 25, 2008
BIND 9.x - Remote DNS Cache Poisoning
Open source ↗ - Exploit-DBEDB-6123✓ verifiedFirst seen Jul 24, 2008
BIND 9.x - Remote DNS Cache Poisoning
Open source ↗ - Exploit-DBEDB-6122✓ verifiedFirst seen Jul 23, 2008
BIND 9.4.1 < 9.4.2 - Remote DNS Cache Poisoning (Metasploit)
Open source ↗ - Metasploitauxiliary/spoof/dns/bailiwicked_host✓ verifiedFirst seen Jul 21, 2008
DNS BailiWicked Host Attack
Open source ↗ - Metasploitauxiliary/spoof/dns/bailiwicked_domain✓ verifiedFirst seen Jul 21, 2008
DNS BailiWicked Domain Attack
Open source ↗
Frequently asked(5)
What is CVE-2008-1447?
When was CVE-2008-1447 disclosed?
Is CVE-2008-1447 actively exploited?
What is the CVSS score of CVE-2008-1447?
How do I remediate CVE-2008-1447?
Dependency Blast Radius
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