CVE-2023-45277
Yamcs Path Traversal vulnerability
CVE-2023-45277 is a high vulnerability (CVSS 7.5) in Spaceapplications Yamcs, published October 19, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.22%, the 69th percentile. Fixed in org.yamcs:yamcs 5.8.7.
- Severity
- 7.5 HighCVSS 3.1, NVD
- Exploit chance
- 1.22%EPSS, 69th percentile
- Exploitation
- None known1 public exploit
- Fixed in
5.8.7org.yamcs:yamcs +1 more
Description
Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.yamcs:yamcsMaven | before 5.8.7 | 5.8.7 |
org.yamcs:yamcsMaven | before 5.8.7, plus listed versions 0.29.30.30.03.0.03.1.03.1.1 Show 45 moreShow less3.1.23.2.03.2.13.2.23.3.03.3.13.4.03.4.13.4.113.4.23.4.33.4.43.4.53.4.63.4.84.0.04.0.14.1.14.1.24.10.04.10.14.10.24.10.34.10.44.10.54.10.64.10.74.10.84.10.94.2.04.2.14.2.24.3.04.3.14.4.04.4.14.4.24.5.04.6.04.6.14.6.24.6.34.74.7.14.7.3 | 5.8.7 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | shoucheng3/yamcs__yamcs_CVE-2023-45277_5-8-6 | 2025-08-17 |
What each source reports
NVD Score used
Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.
- Record
CVE-2023-45277- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE ListNo score
Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.
- Record
CVE-2023-45277- Updated
- 2026-11-02
EUVDEUVD-2023-2824No score
Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.
- Record
EUVD-2023-2824- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w4m2-qmh3-2g8f
Yamcs Path Traversal vulnerability
Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.
- Record
GHSA-w4m2-qmh3-2g8f- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVGHSA-w4m2-qmh3-2g8f
Yamcs Path Traversal vulnerability
Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.
- Record
GHSA-w4m2-qmh3-2g8f- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVNo score
Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.
- Record
CVE-2023-45277- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
github.com/yamcs/yamcs/compare/yamcs-5.8.6...yamcs-5.8.7
linkedin.com/pulse/yamcs-vulnerability-assessment-visionspace-technologies
nvd.nist.gov/vuln/detail/CVE-2023-45277
Left out here: 65 versions. The JSON record has them.