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CISA KEV · ACTIVELY EXPLOITED
HIGH severity

CVE-2015-2051 — Dir-645 Firmware

HIGH

CVE-2015-2051 is a high-severity (CVSS 8.8) CWE-77 vulnerability in dlink dir-645 firmware. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-02-10) — treat it as actively exploited and patch now. A fix is available — see the affected versions and patch details below.

The D-Link DIR-645 Wired/Wireless Router Rev. Ax with firmware 1.04b12 and earlier allows remote attackers to execute arbitrary commands via a GetDeviceSettings action to the HNAP interface.

Published
Updated
Affected
1 product
Patched
See advisory
Exploits
4 known
Exploitation data as of Oct 23, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-02-10. Federal agencies were required to remediate by 2022-08-10.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2015-2051.

EPSS Exploitation Probability

via FIRST.org ↗
97.1%probability of exploitation in next 30 days
Very High Risk0.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
91.8%94.0%96.1%98.3%93.2%97.1%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2015-2051 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.

Description

The D-Link DIR-645 Wired/Wireless Router Rev. Ax with firmware 1.04b12 and earlier allows remote attackers to execute arbitrary commands via a GetDeviceSettings action to the HNAP interface.

Affected Products

1 product · 1 configurations
OS
dir-645 firmwaredlink
< 1.05b01
range
Exploits & PoCs
4

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-37171remotehardware✓ Verified

D-Link Devices - HNAP SOAPAction-Header Command Execution (Metasploit)

by Metasploit · Jun 1, 2015

Exploit-DB Source

Detection & mitigation playbook

Vendor / appliance

  1. Detect

    Inventory every dlink dir-645 firmware deployment and check each version against the affected-products list above.

  2. Fix

    Apply the dlink dir-645 firmware security patch or hotfix for CVE-2015-2051 on the affected version, following the vendor advisory for your exact build.

  3. Workarounds

    Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Frequently Asked Questions

The D-Link DIR-645 Wired/Wireless Router Rev. Ax with firmware 1.04b12 and earlier allows remote attackers to execute arbitrary commands via a GetDeviceSettings action to the HNAP interface.
O3 Security · Runtime Protection

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Detect and block the exploit chain at execution, on systems you cannot patch yet.

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CVE-2015-2051: Dir-645 Firmware (High 8.8, KEV)