HIGH
Directory traversal vulnerability in nhttpd (aka Nostromo webserver) before 1.9.4 allows remote attackers to execute arbitrary programs or read arbitrary files via a ..%2f (encoded dot dot slash) in a URI
Published Mar 16, 2011
7.5
HIGHCVSS 2.0
EPSS 3.66%
Description
Directory traversal vulnerability in nhttpd (aka Nostromo webserver) before 1.9.4 allows remote attackers to execute arbitrary programs or read arbitrary files via a ..%2f (encoded dot dot slash) in a URI.
Affected products
No data.
OR
- ≤ 1.9.3
- 0.1
- 0.2
- 0.3
- 0.4
- 0.5
- 0.6
- 0.7
- 0.8
- 0.9
- 1.0
- 1.1
- 1.2
- 1.3
- 1.4
- 1.5
- 1.5.1
- 1.6
- 1.7
- 1.7.1
- 1.7.2
- 1.7.3
- 1.7.4
- 1.7.5
- 1.7.6
- 1.7.7
- 1.7.8
- 1.7.9
- 1.8
- 1.8.1
- 1.8.2
- 1.8.3
- 1.8.4
- 1.8.5
- 1.8.6
- 1.8.7
- 1.8.8
- 1.8.9
- 1.9
- 1.9.1
- 1.9.2
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.
3.66% 0.03664
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03664
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 | 3.66% (0.03664) | 89.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.66% (0.03664) | 88.16th | v5 (v2026.06.15) |
| Nov 23, 2025 | 6.92% (0.06922) | 91.01th | v4 (v2025.03.14) |
| Jul 3, 2025 | 8.11% (0.08113) | 91.78th | v4 (v2025.03.14) |
| Mar 30, 2025 | 9.35% (0.09349) | 92.01th | v4 (v2025.03.14) |
| Mar 29, 2025 | 12.69% (0.12688) | 89.95th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.35% (0.09349) | 92.18th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.26% (0.02262) | 90.00th | v3 (v2023.03.01) |
| Jun 29, 2024 | 2.26% (0.02262) | 89.69th | v3 (v2023.03.01) |
| May 16, 2024 | 1.46% (0.01459) | 86.64th | v3 (v2023.03.01) |
| Apr 1, 2024 | 1.14% (0.01142) | 84.46th | v3 (v2023.03.01) |
| Apr 4, 2023 | 1.25% (0.01250) | 83.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.54% (0.01542) | 85.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 34.76% (0.34759) | 97.78th | v2 (v2022.01.01) |
| Feb 4, 2022 | 34.76% (0.34759) | 96.74th | v2 (v2022.01.01) |
Weaknesses (1)
References (9)
- http://osvdb.org/71235 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/43775 third-party-advisoryx_refsource_SECUNIA
- http://securityreason.com/securityalert/8140 third-party-advisoryx_refsource_SREASON
- http://www.nazgul.ch/dev_nostromo.html x_refsource_CONFIRM
- http://www.redteam-pentesting.de/advisories/rt-sa-2011-001 x_refsource_MISCExploit
- http://www.securityfocus.com/archive/1/517026/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/46880 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2011/0674 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66103 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/71235 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/43775 | third-party-advisoryx_refsource_SECUNIA | |
| http://securityreason.com/securityalert/8140 | third-party-advisoryx_refsource_SREASON | |
| http://www.nazgul.ch/dev_nostromo.html | x_refsource_CONFIRM | |
| http://www.redteam-pentesting.de/advisories/rt-sa-2011-001 | x_refsource_MISCExploit | |
| http://www.securityfocus.com/archive/1/517026/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/46880 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2011/0674 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/66103 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 16, 2011
Updated Aug 6, 2024
Reserved Feb 2, 2011
Link CVE-2011-0751
CISA Vulnrichment
Updated n/a