BIND 9.6.0, 9.5.1, 9.5.0, 9.4.3, and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.
CVE-2009-0025
MEDIUMCVSS v2 · 6.86.8—
EchelonGraph scoreLOW confidence
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.8 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 6.9% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
Triggered by: NVD CVSS v2.0 (legacy fallback)
Sources: epss, nvd_v2
6.8EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 6.9%CVSS v2: 6.8Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 6.8MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 6.8MEDIUMlow confidence
- EG Risk
- 38EG Risk 38/100
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computed (value × EchelonGraph’s weight)Severity68% × 45%The EG Score, 6.8 of 10.Exploitation7% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability30% × 15%EchelonGraph's default: CISA has not published Automatable for this CVE.SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 6.9%
- EPSS %ILE
- 93rd
- KEV
- Not listed
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
Published
January 7, 2009
Last Modified
April 23, 2026
References (33)
- secalert@redhat · CVE Programhttp://groups.google.com/group/comp.protocols.dns.bind/browse_thread/thread/49ef622c8329fd33
- secalert@redhat · CVE Programhttp://lists.apple.com/archives/security-announce/2009/May/msg00002.html
- secalert@redhat · CVE Programhttp://marc.info/?l=bugtraq&m=141879471518471&w=2
- secalert@redhat · CVE Programhttp://secunia.com/advisories/33494
- secalert@redhat · CVE Programhttp://secunia.com/advisories/33546
- secalert@redhat · CVE Programhttp://secunia.com/advisories/33551
- secalert@redhat · CVE Programhttp://secunia.com/advisories/33559
- secalert@redhat · CVE Programhttp://secunia.com/advisories/33683
- secalert@redhat · CVE Programhttp://secunia.com/advisories/33882
- secalert@redhat · CVE Programhttp://secunia.com/advisories/35074
- secalert@redhat · CVE Programhttp://security.freebsd.org/advisories/FreeBSD-SA-09:04.bind.asc
- secalert@redhat · CVE Programhttp://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.540362
- secalert@redhat · CVE Programhttp://sunsolve.sun.com/search/document.do?assetkey=1-26-250846-1
- secalert@redhat · CVE Programhttp://support.apple.com/kb/HT3549
- secalert@redhat · CVE Programhttp://support.avaya.com/elmodocs2/security/ASA-2009-045.htm
15 of 33 shown · show the other 18
- secalert@redhat · CVE Programhttp://wiki.rpath.com/Advisories:rPSA-2009-0009
- secalert@redhat · CVE Programhttp://www.ocert.org/advisories/ocert-2008-016.html
- secalert@redhat · CVE Programhttp://www.openbsd.org/errata44.html#008_bind
- secalert@redhat · CVE Programhttp://www.securityfocus.com/archive/1/499827/100/0/threaded
- secalert@redhat · CVE Programhttp://www.securityfocus.com/archive/1/500207/100/0/threaded
- secalert@redhat · CVE Programhttp://www.securityfocus.com/archive/1/502322/100/0/threaded
- secalert@redhat · CVE Programhttp://www.securityfocus.com/bid/33151
- secalert@redhat · CVE Programhttp://www.us-cert.gov/cas/techalerts/TA09-133A.htmlUS Government Resource
- secalert@redhat · CVE Programhttp://www.vmware.com/security/advisories/VMSA-2009-0004.html
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2009/0043
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2009/0366
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2009/0904
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2009/1297
- secalert@redhat · CVE Programhttps://issues.rpath.com/browse/RPL-2938
- secalert@redhat · CVE Programhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10879
- secalert@redhat · CVE Programhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5569
- secalert@redhat · CVE Programhttps://www.isc.org/software/bind/advisories/cve-2009-0025
- secalert@redhat · CVE Programhttps://www.redhat.com/archives/fedora-package-announce/2009-January/msg00393.html
Patch Availability(2)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libdns43 (1:9.5.0.dfsg.P2-1ubuntu3.1) @ intrepid | 2026-05-30 | ubuntu |
| redhat | bind-30:9.3.4-6.0.3.P1.el5_2 | 2009-01-08 | 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.
Affected Packages
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bind9 | — |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bind9 | — |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bind9 | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bind9 | — |
| — |
Debian:4.0(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bind9 | 1:9.3.4-2, 1:9.3.4-2etch1, 1:9.3.4-2etch2~bpo.1, 1:9.3.4-2etch3 |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(2)
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 8× in last 7d / 18× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 82 of 120 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 18 repeat rows among the latest 100 are merged into the row they repeat. The 38 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-11 13:38 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-10-10 19:54 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-10-09 20:00 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-10-08 16:33 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-10-07 23:37 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-10-06 15:09 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-10-05 17:37 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-10-04 23:15 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-10-03 21:58 UTCOSV refresh
- 2026-09-30 14:58 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-29 07:56 UTCEG score recompute
- 2026-09-27 13:39 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-26 15:52 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-24 13:57 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-17 19:20 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-15 03:04 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-14 12:14 UTCOSV refresh
- 2026-09-12 14:54 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-10 09:24 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-06 13:41 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-05 15:22 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-09-04 13:55 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-08-28 21:34 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-08-27 14:19 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-08-26 13:02 UTCOSV refresh
Show 57 moreShow fewer
- 2026-08-25 13:43 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-08-19 16:58 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-08-15 01:24 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-08-10 01:40 UTCOSV refresh
- 2026-08-08 16:31 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-08-06 13:41 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-08-03 10:28 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-30 16:22 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-30 01:26 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-26 13:37 UTCEG score recompute▲ 6.80
- 2026-07-25 14:12 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-25 02:41 UTCOSV refresh
- 2026-07-24 14:12 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-23 14:14 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-23 00:58 UTCEG score recompute
- 2026-07-23 00:36 UTCEG score recompute
- 2026-07-23 00:03 UTCEG score recompute
- 2026-07-22 21:42 UTCEG score recompute
- 2026-07-22 14:03 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-21 15:20 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-20 17:03 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-18 09:59 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-16 16:58 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-15 16:54 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-15 01:55 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-13 22:25 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-11 08:22 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-09 19:04 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-08 15:10 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-07 21:27 UTCOSV refresh
- 2026-07-06 16:23 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-06 02:19 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-05 02:26 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-04 06:27 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-07-01 15:02 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-30 23:19 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-28 04:52 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-27 03:05 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-25 13:46 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-24 14:02 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-23 21:29 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-22 14:22 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-21 14:53 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-21 01:56 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-19 19:22 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-19 09:25 UTCOSV refresh
- 2026-06-18 17:49 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-17 17:49 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-16 17:49 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-15 17:44 UTCEPSS rescoreEPSS 6.9% · 93rd percentile
- 2026-06-14 23:14 UTCEPSS rescoreEPSS 1.0% · 77th percentile
- 2026-06-13 22:57 UTCEPSS rescoreEPSS 1.0% · 77th percentile
- 2026-06-12 23:08 UTCEPSS rescoreEPSS 1.0% · 76th percentile
- 2026-06-10 22:14 UTCEPSS rescoreEPSS 1.0% · 76th percentile
- 2026-06-10 13:17 UTCEPSS rescoreEPSS 1.0% · 76th percentile
- 2026-06-08 14:13 UTCEPSS rescoreEPSS 1.0% · 76th percentile
- 2026-06-07 15:22 UTCEPSS rescoreEPSS 1.0% · 76th percentile
Related CVEs(same product + same CWE)
Same product
10 shownDebian:4.0:bind9 · Debian:11:bind9
- CVE-2008-1447NVD 6.8EG 9.0EPSS p100CRITICAL
- CVE-2009-0696EG 4.3EPSS p96MEDIUM
- CVE-2007-2926EG 4.3EPSS p96MEDIUM
- CVE-2009-4022EG 2.6EPSS p95LOW
- CVE-2021-25216NVD 8.1EG 9.8EPSS p100CRITICAL
- CVE-2023-50387NVD 7.5EG 9.0EPSS p100CRITICAL
- CVE-2020-8617NVD 7.5EG 9.0EPSS p100CRITICAL
- CVE-2016-2776NVD 7.5EG 9.0EPSS p100CRITICAL
- CVE-2015-5477NVD 7.5EG 9.0 KEVEPSS p100CRITICAL
- CVE-2016-1286NVD 8.6EG 8.8EPSS p99HIGH
Frequently asked(4)
What is CVE-2009-0025?
CVE-2009-0025 is a medium vulnerability published on January 7, 2009. BIND 9.6.0, 9.5.1, 9.5.0, 9.4.3, and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.
When was the CVE record for CVE-2009-0025 published?
The CVE record for CVE-2009-0025 was published on January 7, 2009. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 23, 2026; the record at its source may have been updated since.
Is CVE-2009-0025 actively exploited?
CVE-2009-0025 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.9% probability of exploitation in the next 30 days (93rd percentile of EPSS-scored CVEs).
How do I remediate CVE-2009-0025?
A fix for CVE-2009-0025 is available: update to the fixed version the vendor names in its advisory.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2009-0025
Is Your Infrastructure Affected by CVE-2009-0025?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.