OpenSSL 0.9.6e uses assertions when detecting buffer overflow attacks instead of less severe mechanisms, which allows remote attackers to cause a denial of service (crash) via certain messages that cause OpenSSL to abort from a failed assertion, as demonstrated using SSLv2 CLIENT_MASTER_KEY messages, which are not properly handled in s2_srvr.c.
CVE-2002-1568
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.0 — 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:L/Au:N/C:N/I:N/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 2.8% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 5.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 5.0MEDIUMlow confidence
- EG Risk
- 28EG Risk 28/100CISA SSVC
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 computedSeverity50% × 45%Exploitation3% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).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
- 2.8%
- EPSS %ILE
- 85th
- KEV
- Not listed
CISA SSVCTrack 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). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
November 17, 2003
Last Modified
June 16, 2026
References (6)
- cve@mitrehttp://cvs.openssl.org/chngview?cn=7659
- cve@mitrehttp://marc.info/?l=bugtraq&m=106511018214983
- cve@mitrehttp://www.ebitech.sk/patrik/SA/SA-20031002.txt
- af854a3a-2127-422b-91ae-364da2661108http://cvs.openssl.org/chngview?cn=7659
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=106511018214983
- af854a3a-2127-422b-91ae-364da2661108http://www.ebitech.sk/patrik/SA/SA-20031002.txt
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | patch | 2002-07-30 | 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
(4 across 4 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.6g-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.6g-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.6g-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 0.9.6g-1 | — |
All Vendor Advisories
(1)
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 1× in last 7d / 4× 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.
- 2026-09-29 02:36 UTCEG score recompute
- 2026-09-16 04:54 UTCOSV refresh
- 2026-09-12 14:54 UTCEPSS rescore
- 2026-09-10 09:23 UTCEPSS rescore
- 2026-08-30 01:13 UTCEPSS rescore
- 2026-08-28 02:47 UTCOSV refresh
- 2026-08-11 16:32 UTCOSV refresh
- 2026-07-26 16:47 UTCOSV refresh
- 2026-07-26 13:22 UTCEG score recompute▲ 5.00
- 2026-07-25 14:11 UTCEPSS rescore
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- 2026-07-23 00:44 UTCEG score recompute
- 2026-07-23 00:26 UTCEG score recompute
- 2026-07-22 23:49 UTCEG score recompute
- 2026-07-22 21:29 UTCEG score recompute
- 2026-07-20 17:02 UTCEPSS rescore
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- 2026-07-09 10:46 UTCOSV refresh
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- 2026-06-20 23:12 UTCOSV refresh
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- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 17:08 UTCEG score recompute
- 2026-05-31 17:08 UTCVendor advisory
- 2026-05-31 17:08 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
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- 2026-05-29 13:40 UTCEPSS rescore
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- 2026-05-28 08:03 UTCOSV refresh
- 2026-05-27 13:37 UTCEPSS rescore
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Related CVEs(same product + same vendor)
Same product
10 shownDebian:11:openssl
- CVE-2009-3245EG 10.0EPSS p94HIGH
- CVE-2006-3738EG 10.0EPSS p99HIGH
- CVE-2026-45447NVD 8.8EG 9.8EPSS p90CRITICAL
- CVE-2022-2068NVD 7.3EG 9.8EPSS p100CRITICAL
- CVE-2022-1292NVD 7.3EG 9.8EPSS p100CRITICAL
- CVE-2021-3711EG 9.8EPSS p100CRITICAL
- CVE-2016-6303EG 9.8EPSS p98CRITICAL
- CVE-2016-2182EG 9.8EPSS p99CRITICAL
- CVE-2016-2177EG 9.8EPSS p99CRITICAL
- CVE-2016-2108EG 9.8EPSS p100CRITICAL
Same vendor
2 shownredhat:RHSA-2002:157
Frequently asked(4)
What is CVE-2002-1568?
When was CVE-2002-1568 disclosed?
Is CVE-2002-1568 actively exploited?
How do I remediate CVE-2002-1568?
Dependency Blast Radius
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