nginx: Absent sanitation of escape sequences in web server log
Published Jan 13, 2010
6.8
MEDIUMCVSS 2.0
EPSS 29.52%
Description
nginx 0.7.64 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.
Affected products
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:M/Au:N/C:P/I:P/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 2, 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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 29.52% (0.29516) | 98.14th | v5 (v2026.06.15) |
| Sep 10, 2026 | 29.52% (0.29516) | 98.07th | v5 (v2026.06.15) |
| Sep 9, 2026 | 26.82% (0.26820) | 97.91th | v5 (v2026.06.15) |
| Jul 24, 2026 | 29.52% (0.29516) | 97.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 27.01% (0.27008) | 97.78th | v5 (v2026.06.15) |
| Dec 28, 2025 | 1.30% (0.01301) | 79.26th | v4 (v2025.03.14) |
| Dec 27, 2025 | 2.62% (0.02618) | 85.30th | v4 (v2025.03.14) |
| Oct 28, 2025 | 1.10% (0.01099) | 77.32th | v4 (v2025.03.14) |
| Oct 27, 2025 | 2.22% (0.02218) | 83.94th | v4 (v2025.03.14) |
| Oct 1, 2025 | 0.71% (0.00711) | 71.54th | v4 (v2025.03.14) |
| Aug 11, 2025 | 2.23% (0.02227) | 83.82th | v4 (v2025.03.14) |
| Mar 30, 2025 | 0.94% (0.00935) | 74.07th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.71% (0.03708) | 79.67th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.99% (0.00990) | 75.31th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.72% (0.00722) | 81.28th | v3 (v2023.03.01) |
| Jul 13, 2024 | 0.71% (0.00711) | 80.64th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.66% (0.00662) | 79.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.66% (0.00662) | 76.48th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.19% (0.04187) | 87.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.19% (0.04187) | 86.11th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.19% (0.04187) | 69.86th | v2 (v2022.01.01) |
No CWE recorded.
References (7)
- http://www.securityfocus.com/archive/1/508830/100/0/threaded mailing-listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/37711 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- http://www.ush.it/team/ush/hack_httpd_escape/adv.txt x_refsource_MISCExploitPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2009-4487 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=562798 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-4487
- https://www.cve.org/CVERecord?id=CVE-2009-4487
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/archive/1/508830/100/0/threaded | mailing-listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/bid/37711 | vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry | |
| http://www.ush.it/team/ush/hack_httpd_escape/adv.txt | x_refsource_MISCExploitPatchThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2009-4487 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=562798 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2009-4487 | ||
| https://www.cve.org/CVERecord?id=CVE-2009-4487 |
Change history (0)
No recorded changes yet.