CVE-2021-35250 (GCVE-0-2021-35250)

Vulnerability from cvelistv5 – Published: 2022-04-25 19:47 – Updated: 2024-09-16 23:31
VLAI Previdian
Title
Directory Transversal Vulnerability in Serv-U 15.3
Summary
A researcher reported a Directory Transversal Vulnerability in Serv-U 15.3. This may allow access to files relating to the Serv-U installation and server files. This issue has been resolved in Serv-U 15.3 Hotfix 1.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-22 - File and Directory Information Exposure
Assigner
References
Impacted products
Vendor Product Version
SolarWinds Serv-U Affected: 15.3 only , < 15.3 Hotfix 1 (custom)
Create a notification for this product.
Date Public
2022-04-24 16:00
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 81d6d714-3be0-4d04-9aa1-7f8f830f6fc0

Vulnerability ID: CVE-2021-35250

Status: Confirmed

Status Updated: 2025-04-26 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2025-04-26
Asserted: 2025-04-26
Scope
Notes: Directory Transversal Vulnerability in Serv-U 15.3 | Affected: SolarWinds / Serv-U | CVSS: 7.5 (HIGH) | EPSS: 0.12804 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Directory Transversal Vulnerability in Serv-U 15.3
Cve Id CVE-2021-35250
Vendor SolarWinds
Ghsa Id GHSA-7PJC-F7P6-MPFC
Product Serv-U
Added Date 2025-04-26T00:00:00.000Z
Cvss Score 7.5
Epss Score 0.12804
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.96171
Used In Malware unknown
Vulnerability Id CVE-2021-35250
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-10-02 09:10 CEST | Updated: 2026-10-02 09:10 CEST
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.