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ExploitedIn CISA KEV

CVE-2023-39780

Exploitation confirmed. First attested on 2025-06-02 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2023-09-11
  • 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

On ASUS RT-AX55 3.0.0.4.386.51598 devices, authenticated attackers can perform OS command injection via the /start_apply.htm qos_bw_rulelist parameter. NOTE: for the similar "token-generated module" issue, see CVE-2023-41345; for the similar "token-refresh module" issue, see CVE-2023-41346; for the similar "check token module" issue, see CVE-2023-41347; and for the similar "code-authentication module" issue, see CVE-2023-41348.

Timeline

dates in UTC
  1. 2023-09-1119:15CVE publishedNVD
  2. 2025-06-02Added to the CISA KEV catalogCISA KEV
  3. 2025-06-02Listed as exploited by GCVEGCVE
  4. 2025-06-02Exploitation first reportedCISA KEV
  5. 2025-06-0603:55SSVC exploitation set to activeCISA-ADP
  6. 2026-11-0101:02First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 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-2023-39780?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-39780?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

CISA-ADP · NVD
Asus rt-ax55
BranchAffectedFixed in
3.0= 3.0.0.4.386.51598no fix published
Asus rt-ax55 firmwareversion to verify
BranchAffectedFixed in
3.0= 3.0.0.4.386.51598no fix published

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

Products declared by the CNA1 product

As mitre, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • ASUS RT-AX55other versions: unknown
    Affected
    • = 3.0.0.4.386.51598no fix statedcustom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-05-16

Fix

  1. CISA’s required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.due 2025-06-23

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedkrevetkqqq/CVE-2023-39780
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2025-06-02
Patch Due Date
2025-06-23
Ransomware Use
Unknown
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Sources

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
2023-09-11
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-6m5p-5ccp-c8p3

Frequently asked questions

What is CVE-2023-39780?

On ASUS RT-AX55 3.0.0.4.386.51598 devices, authenticated attackers can perform OS command injection via the /start_apply.htm qos_bw_rulelist parameter. NOTE: for the similar "token-generated module" issue, see CVE-2023-41345; for the similar "token-refresh module" issue, see CVE-2023-41346; for the similar "check token module" issue, see CVE-2023-41347; and for the similar "code-authentication module" issue, see CVE-2023-41348.

Is CVE-2023-39780 actively exploited?

Yes. CVE-2023-39780 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2025-06-23.

What is the CVSS score for CVE-2023-39780?

CVE-2023-39780 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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