CASCACascade Atlas

Evidence dossier

CVE-2021-20016

CVE-2021-20016

71.4–92.2Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.

State
PUBLISHED
Published
Feb 3, 2021
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS40.04%

2026-07-18 · v2026.06.15 · percentile 98.5%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

sonicwalloriginal assertion
container

A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.

CISA KEVoriginal assertion
observed_exploitation

SonicWall SSLVPN SMA100 SQL Injection Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.400380000000; percentile 0.984710000000

Applicability

Cited product scope

Trace impact →
SonicWallSonicWall SMA100
[{"status": "affected", "version": "SMA100 build version 10.x"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:sonicwall:sma_500v:-:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:h:sonicwall:sma_100:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sonicwall:sma_200:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:sonicwall:sma_100_firmware:*:*:*:*:*:*:*:*; start including 10.0.0.0; end excluding 10.2.0.5-d-29svsupported
Unknown vendorUnknown product
cpe:2.3:o:sonicwall:sma_200_firmware:-:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:sonicwall:sma_210_firmware:-:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:sonicwall:sma_400_firmware:-:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:sonicwall:sma_410_firmware:-:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.