HOMEVULNERABILITIESCVE-2019-13561
CRITICAL

CVE-2019-13561

CWE-78Published: July 11, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

D-Link DIR-655 C devices before 3.02B05 BETA03 allow remote attackers to execute arbitrary commands via shell metacharacters in the online_firmware_check.cgi check_fw_url parameter.

NVD Source

Technical Analysis

CVE-2019-13561 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

dlink2 product(s)
dir-655 firmwaredir-655
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYftp://ftp2.dlink.com/SECURITY_ADVISEMENTS/DIR-655/REVC/DIR-655_REVC_RELEASE_NOTES_v3.02B05_BETA03.pdf
ADVISORYhttps://www.nccgroup.trust/contentassets/7188fe7f130846ffa31827fc1661d120/commandinjection.txt
ADVISORYhttps://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2019/july/the-d-link-dir-655c-from-nothing-to-rce/
ADVISORYftp://ftp2.dlink.com/SECURITY_ADVISEMENTS/DIR-655/REVC/DIR-655_REVC_RELEASE_NOTES_v3.02B05_BETA03.pdf
ADVISORYhttps://www.nccgroup.trust/contentassets/7188fe7f130846ffa31827fc1661d120/commandinjection.txt
ADVISORYhttps://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2019/july/the-d-link-dir-655c-from-nothing-to-rce/

All References (6)

→
ftp://ftp2.dlink.com/SECURITY_ADVISEMENTS/DIR-655/REVC/DIR-655_REVC_RELEASE_NOTES_v3.02B05_BETA03.pdfThird Party Advisory
→
https://www.nccgroup.trust/contentassets/7188fe7f130846ffa31827fc1661d120/commandinjection.txtThird Party Advisory
→
https://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2019/july/the-d-link-dir-655c-from-nothing-to-rce/Exploit · Third Party Advisory
→
ftp://ftp2.dlink.com/SECURITY_ADVISEMENTS/DIR-655/REVC/DIR-655_REVC_RELEASE_NOTES_v3.02B05_BETA03.pdfThird Party Advisory
→
https://www.nccgroup.trust/contentassets/7188fe7f130846ffa31827fc1661d120/commandinjection.txtThird Party Advisory
→
https://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2019/july/the-d-link-dir-655c-from-nothing-to-rce/Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2019-13561
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedJul 11, 2019

Related CVEs (CWE-78)

CVE-1999-0067
10.0
CVE-2003-0041
10.0
CVE-2019-5485
10.0
CVE-2026-34234
KEV10.0
CVE-2021-35402
KEV10.0
CVE-2014-6434
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-13561 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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