Skip to main content
No exploitation reportedFix available

CVE-2023-20076

No exploitation reported by the sources we read.

  • Published2023-02-12
  • Fixed in15.9\(3\)
  • WeaknessCWE-233 · CWE-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

A vulnerability in the Cisco IOx application hosting environment could allow an authenticated, remote attacker to execute arbitrary commands as root on the underlying host operating system. This vulnerability is due to incomplete sanitization of parameters that are passed in for activation of an application. An attacker could exploit this vulnerability by deploying and activating an application in the Cisco IOx application hosting environment with a crafted activation payload file. A successful exploit could allow the attacker to execute arbitrary commands as root on the underlying host operating system.

Timeline

dates in UTC
  1. 2023-02-1204:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 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-2023-20076?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-20076?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Cisco 807 industrial integrated services router firmwareversion to verify
BranchAffectedFixed in
15.9< 15.9\(3\)15.9\(3\)
15.9= 15.9\(3\)mno fix published
15.9= 15.9\(3\)m1no fix published
15.9= 15.9\(3\)m2no fix published
15.9= 15.9\(3\)m2ano fix published
15.9= 15.9\(3\)m3no fix published
15.9= 15.9\(3\)m4no fix published
15.9= 15.9\(3\)m4ano fix published
15.9= 15.9\(3\)m5no fix published
15.9= 15.9\(3\)m6ano fix published
15.9= 15.9\(3\)m6bno fix published
Cisco 809 industrial integrated services router firmwareversion to verify
BranchAffectedFixed in
15.9< 15.9\(3\)15.9\(3\)
15.9= 15.9\(3\)mno fix published
15.9= 15.9\(3\)m1no fix published
15.9= 15.9\(3\)m2no fix published
15.9= 15.9\(3\)m2ano fix published
15.9= 15.9\(3\)m3no fix published
15.9= 15.9\(3\)m4no fix published
15.9= 15.9\(3\)m4ano fix published
15.9= 15.9\(3\)m5no fix published
15.9= 15.9\(3\)m6ano fix published
15.9= 15.9\(3\)m6bno fix published
Cisco 829 industrial integrated services router firmwareversion to verify
BranchAffectedFixed in
15.9< 15.9\(3\)15.9\(3\)
15.9= 15.9\(3\)mno fix published
15.9= 15.9\(3\)m1no fix published
15.9= 15.9\(3\)m2no fix published
15.9= 15.9\(3\)m2ano fix published
15.9= 15.9\(3\)m3no fix published
15.9= 15.9\(3\)m4no fix published
15.9= 15.9\(3\)m4ano fix published
15.9= 15.9\(3\)m5no fix published
15.9= 15.9\(3\)m6ano fix published
15.9= 15.9\(3\)m6bno fix published

6 more products in the sources.

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

Fix

  1. Update Cisco 807 industrial integrated services router firmware to 15.9\(3\)

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2024-10-28
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17.2read 2026-10-23
  • NVDCVSS 3.18.8read 2026-10-23
  • CNAweakness (CWE)CWE-233read 2026-10-23
  • NVDweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score1.5 %2026-10-22

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
2023-02-12
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-20076?

A vulnerability in the Cisco IOx application hosting environment could allow an authenticated, remote attacker to execute arbitrary commands as root on the underlying host operating system. This vulnerability is due to incomplete sanitization of parameters that are passed in for activation of an application. An attacker could exploit this vulnerability by deploying and activating an application in the Cisco IOx application hosting environment with a crafted activation payload file. A successful exploit could allow the attacker to execute arbitrary commands as root on the underlying host operating system.

Is CVE-2023-20076 actively exploited?

Active exploitation of CVE-2023-20076 has not been confirmed. Its EPSS score was 1.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-20076?

CVE-2023-20076 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.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, October 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database