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No exploitation reported

CVE-2021-38556

No exploitation reported by the sources we read.

  • Published2021-08-24
  • WeaknessCWE-77

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

includes/configure_client.php in RaspAP 2.6.6 allows attackers to execute commands via command injection.

Timeline

dates in UTC
  1. 2021-08-2413:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-38556?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-38556?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Raspap
BranchAffectedFixed in
2.6= 2.6.6no fix published
billz/raspap-webgui
BranchAffectedFixed in
2.6≤ 2.6.6no 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 repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.18.8read 2026-10-23
  • NVDCVSS 2.06.5read 2026-10-23
  • NVDweakness (CWE)CWE-77read 2026-10-23
  • FIRST EPSSEPSS score13.0 %read 2026-11-02
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2021-08-25

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2021-08-24
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-7vph-p634-vrqf

Frequently asked questions

What is CVE-2021-38556?

includes/configure_client.php in RaspAP 2.6.6 allows attackers to execute commands via command injection.

Is CVE-2021-38556 actively exploited?

Active exploitation of CVE-2021-38556 has not been confirmed. Its EPSS score was 13.0% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-38556?

CVE-2021-38556 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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