CVE-2021-35252

highpriority · track · 30OT risk · elevatedEPSS 0.006 · 46 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.56% (46th) EPSS

CVSS 7.5 · high

Is it mine?

2 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · cert_bund

EPSS · scored 2026-10-27

Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · psirt@solarwinds.comexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-798US

affected products (2)

Products and version ranges known to be affected.

SolarWinds Serv-U FTP Server≤ 15.3.0enisa_euvdEU
solarwinds serv-u< 15.3.2nvdUScpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-2359SolarWinds Serv-U Managed File Transfer Server: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2022-12-18csaf · cert_bundDE
Ein Angreifer kann eine Schwachstelle in SolarWinds Serv-U Managed File Transfer Server ausnutzen, um Informationen offenzulegen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd cert_bund NVD CVE.org MITRE

published 2022-12-16modified 2026-06-17

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+7705 more

references (10)

External citations — patches, advisories, analysis.

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