What is the CVSS score of CVE-2022-26258?

CVE-2022-26258 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 81.2%.

Is there a public PoC exploit available for CVE-2022-26258?

Yes, a public proof-of-concept exploit is available for CVE-2022-26258. Prioritise patching immediately. EPSS: 81.2%.

Dir 820L Firmware CVE-2022-26258

CRITICAL

OS Command Injection (CWE-78)

2022-03-28 cve@mitre.org

Command Injection D-Link Dir 820L Firmware

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-78 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization OS command sanitization, avoid shell exec MITRE ATT&CK 2 techniques across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. CISA has confirmed active exploitation in the wild. Public proof-of-concept exploit code is available. EPSS exploitation probability: 81.22%.
Exploit ScenarioDerived	A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Emergency Immediate action required. Why: CRITICAL + in CISA KEV (actively exploited), no patch available.

Exploited in the wild (CISA KEV) No patch listed yet 81.2% exploitation probability (EPSS)

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AnalysisAI

D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE) vulnerability via HTTP POST to get set ccp. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE) vulnerability via HTTP POST to get set ccp. Affected products include: Dlink Dir-820L Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Jul 05, 2026 - 01:31 CISA

CVE Published

Mar 28, 2022 - 00:15 nvd

CRITICAL 9.8

DescriptionNVD

D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE) vulnerability via HTTP POST to get set ccp.

Threat Intelligence Overview

Threat Score

7.4/10

Composite threat intelligence

EPSS Score

81.2%

Top 0% exploitable

Exploit

POC

Public exploit code exists

Data Quality

6 sources

Confidence: High

NVD

CVE.org

CISA KEV

EPSS

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV Yes

Public POC Yes

EPSS 81.2%

Patch available No

Active threat Yes

Deciding rule

CRITICAL + in CISA KEV (actively exploited), no patch available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Immediate

Exploitation· derived

Active

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

High

Priority Score

200

Low Medium High Critical

KEV: +50

EPSS: +81

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

OS Command Injection CRITICAL

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)NVD

cpe:2.3:o:dlink:dir-820l_firmware:1.05b03:*:*:*:*:*:*:*

More in Dir 820L Firmware

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CVE-2015-1187 CRITICAL Emergency POC

9.8 Sep 21

The ping tool in multiple D-Link and TRENDnet devices allow remote attackers to execute arbitrary code via the ping_addr

CVE-2023-44809 CRITICAL Act Now POC

9.8 Oct 16

D-Link device DIR-820L 1.05B03 is vulnerable to Insecure Permissions. Rated critical severity (CVSS 9.8), this vulnerabi

CVE-2023-44808 CRITICAL Act Now POC

9.8 Oct 16

D-Link DIR-820L 1.05B03 has a stack overflow vulnerability in the sub_4507CC function. Rated critical severity (CVSS 9.8

CVE-2023-44807 CRITICAL Act Now POC

9.8 Oct 06

D-Link DIR-820L 1.05B03 has a stack overflow vulnerability in the cancelPing function. Rated critical severity (CVSS 9.8

CVE-2023-25280 CRITICAL Act Now POC

9.8 Mar 16

OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to escalate privileges to root via a cr

CVE-2023-25279 CRITICAL Act Now POC

9.8 Mar 13

OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to escalate privileges to root via a cr

CVE-2024-51186 HIGH This Week POC

8.0 Nov 11

D-Link DIR-820L 1.05b03 was discovered to contain a remote code execution (RCE) vulnerability via the ping_addr paramete

CVE-2023-25281 HIGH This Week POC

7.5 Mar 16

A stack overflow vulnerability exists in pingV4Msg component in D-Link DIR820LA1_FW105B03, allows attackers to cause a d

CVE-2023-25283 HIGH This Week POC

7.5 Mar 13

A stack overflow vulnerability in D-Link DIR820LA1_FW106B02 allows attackers to cause a denial of service via the reserv

CVE-2022-34973 HIGH This Week POC

7.5 Aug 03

D-Link DIR820LA1_FW106B02 was discovered to contain a buffer overflow via the nextPage parameter at ping.ccp. Rated high

CVE-2023-25282 MEDIUM This Month POC

6.5 Mar 15

A heap overflow vulnerability in D-Link DIR820LA1_FW106B02 allows attackers to cause a denial of service via the config.

CVE-2024-48150 CRITICAL Act Now

9.8 Oct 14

D-Link DIR-820L 1.05B03 has a stack overflow vulnerability in the sub_451208 function. Rated critical severity (CVSS 9.8

Same weakness CWE-78 – OS Command Injection

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CVE-2019-15107 CRITICAL POC

9.8

CVE-2024-51378 CRITICAL POC

9.8

CVE-2014-6271 CRITICAL POC

9.8

CVE-2018-11138 CRITICAL POC

9.8

CVE-2014-6278 HIGH POC

8.8

CVE-2020-9054 CRITICAL POC

9.8

CVE-2017-6334 HIGH POC

8.8

CVE-2024-50603 CRITICAL POC

10.0

Same technique Command Injection

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CVE-2024-21887 CRITICAL POC

9.1

CVE-2016-3081 HIGH POC

8.1

CVE-2012-1823 CRITICAL POC

9.8

CVE-2016-1555 CRITICAL POC

9.8

CVE-2024-55956 CRITICAL POC

9.8

References

Advisories & patches

ADVISORY https://vuldb.com/vuln/195879 ADVISORY https://www.dlink.com/en/security-bulletin/ REF http://dir-820l.com REF http://dlink.com REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26258

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