Apache 1.3 through 1.3.24, and Apache 2.0 through 2.0.36, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a chunk-encoded HTTP request that causes Apache to use an incorrect size.
CVE-2002-0392
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.5 — v2 rates that HIGH (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: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 95.0% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- 2 internet-exposed hosts are running an affected version right now
- High exploitation likelihood — EPSS 95%
- Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
A fix is available — apply it.
2 internet-exposed hosts are running an affected version of CVE-2002-0392 right now.
EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.
- CVSS v2.0 (legacy)
- 7.5HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 7.5(low)
- EG Risk
- 76(Track)EG Risk 76/100SSVC: 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%Exploitation95% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 95%
- EPSS %ILE
- 100%
- KEV
- Not listed
Published
July 3, 2002
Last Modified
June 16, 2026
References (90)
- cve@mitreftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-029.0.txt
- cve@mitreftp://ftp.caldera.com/pub/updates/OpenServer/CSSA-2002-SCO.32
- cve@mitreftp://ftp.caldera.com/pub/updates/OpenUNIX/CSSA-2002-SCO.31
- cve@mitreftp://patches.sgi.com/support/free/security/advisories/20020605-01-A
- cve@mitreftp://patches.sgi.com/support/free/security/advisories/20020605-01-I
- cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2002-06/0235.html
- cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2002-06/0266.html
- cve@mitrehttp://distro.conectiva.com/atualizacoes/?id=a&anuncio=000498
- cve@mitrehttp://frontal2.mandriva.com/security/advisories?name=MDKSA-2002:039
- cve@mitrehttp://httpd.apache.org/info/security_bulletin_20020617.txt
- cve@mitrehttp://online.securityfocus.com/advisories/4240
- cve@mitrehttp://online.securityfocus.com/advisories/4257
- cve@mitrehttp://online.securityfocus.com/archive/1/278149
- cve@mitrehttp://rhn.redhat.com/errata/RHSA-2002-103.html
- cve@mitrehttp://rhn.redhat.com/errata/RHSA-2002-117.html
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | patch | 2003-04-22 | redhat |
| redhat | patch | 2002-07-31 | redhat |
| redhat | patch | 2002-07-12 | redhat |
| redhat | patch | 2002-06-30 | redhat |
| redhat | patch | 2002-06-20 | redhat |
| redhat | patch | 2002-06-19 | 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 |
|---|---|---|---|
| apache2 | — | 2.0.37 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| apache2 | — | 2.0.37 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| apache2 | — | 2.0.37 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| apache2 | — | 2.0.37 | — |
All Vendor Advisories
(6)
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-2002:103MODERATE2002-06-17
RHSA-2002:103 — Moderate
- Red HatRHSA-2002:117MODERATE2002-06-17
RHSA-2002:117 — Moderate
- Red HatRHSA-2002:118MODERATE2002-06-17
RHSA-2002:118 — Moderate
- Red HatRHSA-2002:126MODERATE2002-06-17
RHSA-2002:126 — Moderate
- Red HatRHSA-2002:150MODERATE2002-06-17
RHSA-2002:150 — Moderate
- Red HatRHSA-2003:106MODERATE2002-06-17
RHSA-2003:106 — Moderate
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.
- 2026-09-12 05:40 UTCOSV refresh
- 2026-08-24 11:12 UTCOSV refresh
- 2026-08-08 07:26 UTCOSV refresh
- 2026-07-26 13:21 UTCEG score recompute▲ 7.50
- 2026-07-23 00:44 UTCEG score recompute
- 2026-07-23 00:30 UTCVendor advisory
- 2026-07-23 00:30 UTCGHSA enrichment
- 2026-07-23 00:27 UTCVendor advisory
- 2026-07-23 00:27 UTCGHSA enrichment
- 2026-07-23 00:26 UTCVendor advisory
- 2026-07-23 00:25 UTCGHSA enrichment
- 2026-07-23 00:25 UTCEG score recompute▼ 9.00
- 2026-07-22 23:48 UTCEG score recompute
- 2026-07-22 21:21 UTCEG score recompute▲ 9.00
- 2026-07-22 21:21 UTCVendor advisory
- 2026-07-22 21:21 UTCGHSA enrichment
- 2026-07-16 16:58 UTCEPSS rescore
- 2026-07-09 13:46 UTCOSV refresh
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-24 14:01 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-21 02:16 UTCOSV refresh
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-14 23:13 UTCEPSS rescore
Show 31 moreShow fewer
- 2026-06-13 22:56 UTCEPSS rescore
- 2026-06-12 23:07 UTCEPSS rescore
- 2026-06-11 13:55 UTCEPSS rescore
- 2026-06-10 22:13 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-05-31 22:27 UTCEPSS rescore
- 2026-05-31 19:22 UTCEG score recompute
- 2026-05-31 19:22 UTCVendor advisory
- 2026-05-31 19:22 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 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
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-23 00:37 UTCOSV refresh
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-21 22:38 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(4 references)Working exploit code is in the public domain (1 Metasploit module) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-16782✓ verifiedFirst seen Jul 7, 2010
Apache (Windows x86) - Chunked Encoding (Metasploit)
Open source ↗ - Metasploitexploit/windows/http/apache_chunked✓ verifiedFirst seen Jun 19, 2002
Apache Win32 Chunked Encoding
Open source ↗ - Exploit-DBEDB-21559✓ verifiedFirst seen Jun 17, 2002
Apache 1.x/2.0.x - Chunked-Encoding Memory Corruption (1)
Open source ↗ - Exploit-DBEDB-21560✓ verifiedFirst seen Jun 17, 2002
Apache 1.x/2.0.x - Chunked-Encoding Memory Corruption (2)
Open source ↗
Related CVEs(same product + same vendor)
Same product
10 shownDebian:11:apache2
- CVE-2005-2700EG 10.0EPSS p98HIGH
- CVE-2003-0789EG 10.0EPSS p96HIGH
- CVE-2026-44631EG 9.8CRITICAL
- CVE-2026-29167EG 9.8CRITICAL
- CVE-2026-28780EG 9.8CRITICAL
- CVE-2024-38476EG 9.8EPSS p99CRITICAL
- CVE-2024-38474EG 9.8CRITICAL
- CVE-2023-25690EG 9.8EPSS p100CRITICAL
- CVE-2022-36760NVD 9.0EG 9.8CRITICAL
- CVE-2022-31813EG 9.8CRITICAL
Same vendor
5 shownredhat:RHSA-2003:106
Frequently asked(4)
What is CVE-2002-0392?
When was CVE-2002-0392 disclosed?
Is CVE-2002-0392 actively exploited?
How do I remediate CVE-2002-0392?
Dependency Blast Radius
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