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ExploitedNot in CISA KEV yet

CVE-2020-11963

Exploitation confirmed. First attested on 2026-01-23 by GCVE · kevintel, GCVE · shadowserver.

  • Published2020-04-21
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

IQrouter through 3.3.1, when unconfigured, has multiple remote code execution vulnerabilities in the web-panel because of Bash Shell Metacharacter Injection. Note: The vendor claims that this vulnerability can only occur on a brand-new network that, after initiating the forced initial configuration (which has a required step for setting a secure password on the system), makes this CVE invalid. This vulnerability is “true for any unconfigured release of OpenWRT, and true of many other new Linux distros prior to being configured for the first time”

Timeline

dates in UTC
  1. 2020-04-2113:15CVE publishedNVD
  2. 2026-01-2311:38Listed as exploited by GCVEGCVE
  3. 2026-01-2311:38Exploitation first reportedGCVE

Versions per branch

NVD
Evenroute iqrouter firmwareversion to verify
BranchAffectedFixed in
3.3≤ 3.3.1no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-04-21
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-9w3v-8h48-46jq

Frequently asked questions

What is CVE-2020-11963?

IQrouter through 3.3.1, when unconfigured, has multiple remote code execution vulnerabilities in the web-panel because of Bash Shell Metacharacter Injection. Note: The vendor claims that this vulnerability can only occur on a brand-new network that, after initiating the forced initial configuration (which has a required step for setting a secure password on the system), makes this CVE invalid. This vulnerability is “true for any unconfigured release of OpenWRT, and true of many other new Linux distros prior to being configured for the first time”

Is CVE-2020-11963 actively exploited?

Active exploitation of CVE-2020-11963 has not been confirmed. Its EPSS score was 3.2% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-11963?

CVE-2020-11963 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record