CVE-2023-45277

Exp

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.

Published: 2023-10-19 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-45277 is rated High Exploit Risk (72.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.28%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2023-45277

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-45277

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-30 1.55% 1.28% -0.27%
2 2026-05-20 0.78% 1.55% +0.77%
3 2026-03-30 — 0.78% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-45277

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-45277

GitHub Security Advisory for CVE-2023-45277

GHSA-w4m2-qmh3-2g8f · Severity: high · Ecosystem: maven — Yamcs Path Traversal vulnerability

Affected software / configurations for CVE-2023-45277

Vendor Product Version Raw CPE
spaceapplications yamcs 5.8.6 cpe:2.3:a:spaceapplications:yamcs:5.8.6:*:*:*:*:*:*:*

References for CVE-2023-45277

cvelogic Threat Intelligence