HIGH
mod_access in Apache 1.3 before 1.3.30, when running big-endian 64-bit platforms, does not properly parse Allow/Deny rules using IP addresses without a netmask, which could allow remote attackers to bypass intended access restrictions
Published Sep 1, 2004
7.5
HIGHCVSS 2.0
EPSS 10.84%
Description
mod_access in Apache 1.3 before 1.3.30, when running big-endian 64-bit platforms, does not properly parse Allow/Deny rules using IP addresses without a netmask, which could allow remote attackers to bypass intended access restrictions.
Affected products
No data.
OR
- 1.3
- 1.3.1
- 1.3.3
- 1.3.4
- 1.3.6
- 1.3.7
- 1.3.9
- 1.3.11
- 1.3.12
- 1.3.14
- 1.3.17
- 1.3.18
- 1.3.19
- 1.3.20
- 1.3.22
- 1.3.23
- 1.3.24
- 1.3.25
- 1.3.26
- 1.3.27
- 1.3.28
- 1.3.29
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
10.84% 0.10838
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.10838
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 10.84% (0.10838) | 95.73th | v5 (v2026.06.15) |
| Aug 10, 2026 | 10.84% (0.10838) | 95.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.74% (0.09744) | 94.90th | v5 (v2026.06.15) |
| Dec 28, 2025 | 5.03% (0.05029) | 89.39th | v4 (v2025.03.14) |
| Dec 27, 2025 | 13.90% (0.13904) | 94.13th | v4 (v2025.03.14) |
| Oct 28, 2025 | 5.03% (0.05029) | 89.23th | v4 (v2025.03.14) |
| Oct 27, 2025 | 13.90% (0.13904) | 94.05th | v4 (v2025.03.14) |
| Oct 1, 2025 | 5.03% (0.05029) | 89.33th | v4 (v2025.03.14) |
| Jul 30, 2025 | 13.90% (0.13904) | 94.03th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.67% (0.05667) | 89.44th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.12% (0.07124) | 85.58th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.67% (0.05667) | 89.69th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.34% (0.00342) | 72.37th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.34% (0.00342) | 70.71th | v3 (v2023.03.01) |
| Aug 9, 2023 | 0.34% (0.00342) | 67.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.38% (0.00376) | 68.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.34% (0.07344) | 92.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.34% (0.07344) | 91.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.34% (0.07344) | 80.64th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (23)
- http://frontal2.mandriva.com/security/advisories?name=MDKSA-2004:046 vendor-advisoryx_refsource_MANDRAKE
- http://issues.apache.org/bugzilla/show_bug.cgi?id=23850 x_refsource_CONFIRM
- http://marc.info/?l=apache-cvs&m=107869603013722 mailing-listx_refsource_MLIST
- http://marc.info/?l=bugtraq&m=108437852004207&w=2 mailing-listx_refsource_BUGTRAQ
- http://security.gentoo.org/glsa/glsa-200405-22.xml vendor-advisoryx_refsource_GENTOO
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-101555-1 vendor-advisoryx_refsource_SUNALERT
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-101841-1 vendor-advisoryx_refsource_SUNALERT
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-57628-1 vendor-advisoryx_refsource_SUNALERT
- http://www.apacheweek.com/features/security-13 x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/9829 vdb-entryx_refsource_BIDPatchVendor Advisory
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.529643 vendor-advisoryx_refsource_SLACKWARE
- http://www.trustix.org/errata/2004/0027 vendor-advisoryx_refsource_TRUSTIX
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15422 vdb-entryx_refsource_XF
- https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r5f9c22f9c28adbd9f00556059edc7b03a5d5bb71d4bb80257c0d34e4%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r7035b7c9091c4b665a3b7205364775410646f12125d48e74e395f2ce%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/raa117ef183f0da9b3f46efbeaa66f7622bd68868a450cae4fd8ed594%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/re028d61fe612b0908595d658b9b39e74bca56f2a1ed3c5f06b5ab571%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100111 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4670 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 1, 2004
Updated Aug 8, 2024
Reserved Dec 16, 2003
Link CVE-2003-0993
CISA Vulnrichment
Updated n/a