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Emerging threatsCritical

CVE-2020-15893Dir-816l Firmware OS Command Injection

An issue was discovered on D-Link DIR-816L devices 2.x before 1.10b04Beta02.

Published Jul 22, 2020 · Updated Nov 21, 2024

Key Facts

Patch immediately
  • CVE-2020-15893 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Dir-816l Firmware (Dlink).
  • It is exploited in the wild, listed in Industry KEV feed since Nov 6, 2020. Public exploit code is available.
  • EPSS estimates a 21% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

21%

Higher than 97.5% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

47/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Nov 6, 2020

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

1

Proof-of-concept links

In-the-wild evidence

2

Reports of active use

Description

An issue was discovered on D-Link DIR-816L devices 2.x before 1.10b04Beta02. Universal Plug and Play (UPnP) is enabled by default on port 1900. An attacker can perform command injection by injecting a payload into the Search Target (ST) field of the SSDP M-SEARCH discover packet.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedNov 6, 2020n/aNot reported

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
Dir-816l FirmwareDlink2.06, 2.06.b09-betan/a

Timeline

  1. Publicly disclosed

    Jul 22, 2020

  2. Added to Industry KEV feed

    Nov 6, 2020

  3. Last updated

    Nov 21, 2024

Weakness Type

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

FAQ

Common Questions.

Is CVE-2020-15893 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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