MEDIUM
Openpyxl 2.4.1 resolves external entities by default, which allows remote attackers to conduct XXE attacks via a crafted .xlsx document
Published Feb 15, 2017
6.4
MEDIUMCVSS 4.0
EPSS 1.16%
Description
Openpyxl 2.4.1 resolves external entities by default, which allows remote attackers to conduct XXE attacks via a crafted .xlsx document.
Affected products
Remediation
No remediation recorded yet.
Metrics
6.4 MEDIUM GHSA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:H
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction Passive
Vulnerable System Confidentiality None
Vulnerable System Integrity None
Vulnerable System Availability None
Subsequent System Confidentiality High
Subsequent System Integrity None
Subsequent System Availability High
No CVSS v3.1 score for this CVE.
8.2 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact High
Integrity Impact None
Availability Impact High
5.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.16% 0.01159
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01159
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.16% (0.01159) | 65.93th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.16% (0.01159) | 62.86th | v5 (v2026.06.15) |
| Nov 18, 2025 | 0.28% (0.00277) | 47.99th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.48% (0.00481) | 76.14th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.48% (0.00481) | 75.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.48% (0.00480) | 72.07th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.31% (0.01306) | 31.19th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.31% (0.01306) | 0.00th | v1 |
Weaknesses (1)
References (9)
- http://www.openwall.com/lists/oss-security/2017/02/07/5 x_refsource_CONFIRMMailing ListThird Party Advisory
- https://bitbucket.org/openpyxl/openpyxl/commits/3b4905f428e1 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bitbucket.org/openpyxl/openpyxl/issues/749 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854442 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://foss.heptapod.net/openpyxl/openpyxl/-/commit/7fe678fd89fd
- https://foss.heptapod.net/openpyxl/openpyxl/-/issues/749
- https://github.com/advisories/GHSA-chqf-hx79-gxc6 Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/openpyxl/PYSEC-2017-48.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2017-5992
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2017/02/07/5 | x_refsource_CONFIRMMailing ListThird Party Advisory | |
| https://bitbucket.org/openpyxl/openpyxl/commits/3b4905f428e1 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://bitbucket.org/openpyxl/openpyxl/issues/749 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854442 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://foss.heptapod.net/openpyxl/openpyxl/-/commit/7fe678fd89fd | ||
| https://foss.heptapod.net/openpyxl/openpyxl/-/issues/749 | ||
| https://github.com/advisories/GHSA-chqf-hx79-gxc6 | Advisory | |
| https://github.com/pypa/advisory-database/tree/main/vulns/openpyxl/PYSEC-2017-48.yaml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2017-5992 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 15, 2017
Updated Aug 5, 2024
Reserved Feb 15, 2017
Link CVE-2017-5992
CISA Vulnrichment
GHSA-CHQF-HX79-GXC6 Updated n/a