The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference.
CVE-2004-0079
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 9.5%, top 5% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 53(Track)EG Risk 53/100SSVC: Track
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 computedSeverity75% × 45%Exploitation10% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 10%
- EPSS %ILE
- 95%
- KEV
- Not listed
Published
November 23, 2004
Last Modified
June 16, 2026
Advisory Details (2)
Auto-updated May 31, 2026'New OpenSSL releases fix denial of service attacks [17 March 2004]' - MARC
http://marc.info/?l=bugtraq&m=107953412903636&w=2Patch Availability(5)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | openssl096b-0:0.9.6b-22.42 | 2005-11-02 | redhat |
| redhat | patch | 2005-11-02 | redhat |
| redhat | openssl096b-0:0.9.6b-16 | 2004-03-17 | redhat |
| redhat | patch | 2004-03-17 | redhat |
| redhat | patch | 2004-03-17 | 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
(7 across 5 ecosystems)
Debian:3.0(3)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.6c-2.woody.6 | — |
| openssl094 | 0.9.4-6, 0.9.4-6.potato.3, 0.9.4-6.woody.3 | 0.9.4-6.woody.4 | — |
| openssl095 | 0.9.5a-6.woody.3 | 0.9.5a-6.woody.5 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.7d-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.7d-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.7d-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.7d-1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(5)
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.
- Red HatRHSA-2004:120IMPORTANT2004-03-17
RHSA-2004:120 — Important
- Red HatRHSA-2004:121IMPORTANT2004-03-17
RHSA-2004:121 — Important
- Red HatRHSA-2004:139IMPORTANT2004-03-17
RHSA-2004:139 — Important
- Red HatRHSA-2005:829IMPORTANT2004-03-17
RHSA-2005:829 — Important
- Red HatRHSA-2005:830IMPORTANT2004-03-17
RHSA-2005:830 — Important
Data Freshness Timeline
(refreshed 0× in last 7d / 1× 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.
- 2026-08-11 14:33 UTCOSV refresh
- 2026-07-26 14:18 UTCOSV refresh
- 2026-07-25 14:11 UTCEPSS rescore
- 2026-07-24 14:11 UTCEPSS rescore
- 2026-07-23 00:45 UTCEG score recompute
- 2026-07-23 00:27 UTCEG score recompute
- 2026-07-22 23:50 UTCEG score recompute
- 2026-07-22 21:30 UTCEG score recompute
- 2026-07-20 17:02 UTCEPSS rescore
- 2026-07-19 14:25 UTCEPSS rescore
- 2026-07-18 09:59 UTCEPSS rescore
- 2026-07-18 09:59 UTCEPSS rescore
- 2026-07-16 16:58 UTCEPSS rescore
- 2026-07-15 01:55 UTCEPSS rescore
- 2026-07-15 01:55 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-09 08:45 UTCOSV refresh
- 2026-07-08 15:09 UTCEPSS rescore
- 2026-07-04 06:26 UTCEPSS rescore
- 2026-07-02 14:00 UTCEPSS rescore
- 2026-06-28 14:02 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-27 03:04 UTCEPSS rescore
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- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-21 14:52 UTCEPSS rescore
- 2026-06-20 21:12 UTCOSV refresh
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:43 UTCEPSS rescore
- 2026-06-14 23:13 UTCEPSS rescore
- 2026-06-14 23:13 UTCEPSS rescore
- 2026-06-13 22:56 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:55 UTCEPSS rescore
- 2026-06-10 22:13 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-07 15:21 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-05 22:43 UTCEPSS rescore
- 2026-06-05 22:43 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-02 20:10 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 15:40 UTCEG score recompute
- 2026-05-31 15:40 UTCVendor advisory
- 2026-05-31 15:40 UTCGHSA enrichment
- 2026-05-31 02:25 UTCOSV refresh
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 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 13:37 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-24 16:42 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 10:33 UTCOSV refresh
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
- CVE-2001-0825EG 10.0HIGH
- CVE-2001-1009EG 10.0EPSS p93HIGH
- CVE-2001-0554EG 10.0EPSS p98HIGH
- CVE-2001-1162EG 10.0EPSS p96HIGH
- CVE-2001-0414EG 10.0EPSS p100HIGH
- CVE-2001-0191EG 10.0EPSS p92HIGH
- CVE-2001-0301EG 10.0EPSS p91HIGH
- CVE-2001-0197EG 10.0EPSS p96HIGH
- CVE-2001-0233EG 10.0EPSS p96HIGH
- CVE-2001-0010EG 10.0EPSS p98HIGH
Frequently asked(5)
What is CVE-2004-0079?
When was CVE-2004-0079 disclosed?
Is CVE-2004-0079 actively exploited?
What is the CVSS score of CVE-2004-0079?
How do I remediate CVE-2004-0079?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2004-0079
Is Your Infrastructure Affected by CVE-2004-0079?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.