CASCACascade Atlas

Evidence dossier

CVE-2020-29557

CVE-2020-29557

79.2–94.7Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

An issue was discovered on D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20. A buffer overflow in the web interface allows attackers to achieve pre-authentication remote code execution.

State
PUBLISHED
Published
Jan 29, 2021
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS54.32%

2026-07-18 · v2026.06.15 · percentile 98.9%

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

mitreoriginal assertion
container

An issue was discovered on D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20. A buffer overflow in the web interface allows attackers to achieve pre-authentication remote code execution.

CISA KEVoriginal assertion
observed_exploitation

D-Link DIR-825 R1 Devices Buffer Overflow Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.543200000000; percentile 0.988980000000

Applicability

Cited product scope

Trace impact →
n/an/a
[{"status": "affected", "version": "n/a"}]unknown
Unknown vendorUnknown product
cpe:2.3:h:dlink:dir-825\/ac:e:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:dlink:dir-825\/ac:e1a:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:dlink:dir-825\/acf:f1:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:dlink:dir-825\/a:d1a:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:dlink:dir-825\/gf:gf:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:dlink:dir-825:r1:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:dlink:dir-825_r1_firmware:*:*:*:*:*:*:*:*; end including 3.0.1supported

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
10.0
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:N/C:C/I:C/A:C
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.