CASCACascade Atlas

Evidence dossier

CVE-2023-50224

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability

64.6–79.6Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from improper authentication. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. . Was ZDI-CAN-19899.

State
PUBLISHED
Published
May 3, 2024
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS17.45%

2026-07-18 · v2026.06.15 · percentile 96.8%

Source stateNo scored conflict

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

zdioriginal assertion
container

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability

CISA KEVoriginal assertion
observed_exploitation

TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.174500000000; percentile 0.967880000000

Applicability

Cited product scope

Trace impact →
tp-linktl-wr841n_firmware
[{"status": "affected", "version": "0", "lessThan": "12.0", "versionType": "custom"}]unknown
TP-LinkTL-WR841N
[{"status": "affected", "version": "3.16.9 build 200409"}]unknown
Unknown vendorUnknown product
cpe:2.3:h:tp-link:tl-wr841n:12:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:tp-link:tl-wr841n_firmware:3.16.9:build_200409:*:*:*:*:*:*supported

Assessments

CVSS by origin

6.5
zdi-disclosures@trendmicro.comCVSS 3.0 · role SecondaryCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.5
zdiCVSS 3.0 · role unknownCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.