The reverse proxy add forward module (mod_rpaf) 0.5 and 0.6 for the Apache HTTP Server allows remote attackers to cause a denial of service (server or application crash) via multiple X-Forwarded-For headers in a request
Published Sep 5, 2012
5.0
MEDIUMCVSS 2.0
EPSS 6.95%
Description
The reverse proxy add forward module (mod_rpaf) 0.5 and 0.6 for the Apache HTTP Server allows remote attackers to cause a denial of service (server or application crash) via multiple X-Forwarded-For headers in a request.
Affected products
No data.
- 0.5
- 0.6
Running on/with
- n/a
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.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.95% (0.06952) | 93.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.95% (0.06952) | 93.27th | v5 (v2026.06.15) |
| Dec 28, 2025 | 2.60% (0.02596) | 85.18th | v4 (v2025.03.14) |
| Dec 27, 2025 | 1.35% (0.01348) | 79.69th | v4 (v2025.03.14) |
| Oct 28, 2025 | 3.05% (0.03054) | 86.17th | v4 (v2025.03.14) |
| Oct 27, 2025 | 1.35% (0.01348) | 79.48th | v4 (v2025.03.14) |
| Oct 1, 2025 | 3.05% (0.03054) | 86.24th | v4 (v2025.03.14) |
| Jul 30, 2025 | 1.35% (0.01348) | 79.27th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.37% (0.02374) | 83.87th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.08% (0.05077) | 92.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.76% (0.03761) | 90.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
No CWE recorded.
References (8)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683984 x_refsource_MISC
- http://secunia.com/advisories/50400 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.debian.org/security/2012/dsa-2532 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2012/08/22/2 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/08/22/7 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/55154 vdb-entryx_refsource_BID
- http://zecrazytux.net/troubleshooting/apache2-segfault-debugging-tutorial x_refsource_MISC
- https://exchange.xforce.ibmcloud.com/vulnerabilities/77987 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683984 | x_refsource_MISC | |
| http://secunia.com/advisories/50400 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.debian.org/security/2012/dsa-2532 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2012/08/22/2 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2012/08/22/7 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/55154 | vdb-entryx_refsource_BID | |
| http://zecrazytux.net/troubleshooting/apache2-segfault-debugging-tutorial | x_refsource_MISC | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/77987 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.