CVE-2023-4542

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 86.5%, top 0% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 87%
CISA-KEV: Not listedEPSS PROB: 87%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability was found in D-Link DAR-8000-10 up to 20230809. It has been classified as critical. This affects an unknown part of the file /app/sys1.php. The manipulation of the argument cmd with the input id leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-238047. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
83(Track*)
EG Risk 83/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation87% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
87%
EPSS %ILE
100%
KEV
Not listed

Published

August 25, 2023

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Jul 26, 2026
No patch confirmed yet.
generic

CVE-2023-4542/rce.md at main · PumpkinBridge/CVE-2023-4542 · GitHub

https://github.com/PumpkinBridge/cve/blob/main/rce.md

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 22× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-25 14:16 UTCEPSS rescore
  2. 2026-07-24 14:16 UTCEPSS rescore
  3. 2026-07-24 14:16 UTCEPSS rescore
  4. 2026-07-23 14:16 UTCEPSS rescore
  5. 2026-07-23 02:27 UTCEG score recompute
  6. 2026-07-22 23:13 UTCEG score recompute▲ 0.80
  7. 2026-07-22 14:06 UTCEPSS rescore
  8. 2026-07-21 15:23 UTCEPSS rescore
  9. 2026-07-21 15:23 UTCEPSS rescore
  10. 2026-07-18 10:03 UTCEPSS rescore
  11. 2026-07-18 10:03 UTCEPSS rescore
  12. 2026-07-15 16:56 UTCEPSS rescore
  13. 2026-07-15 16:56 UTCEPSS rescore
  14. 2026-07-13 06:11 UTCEPSS rescore
  15. 2026-07-13 06:11 UTCEPSS rescore
  16. 2026-07-12 05:45 UTCEPSS rescore
  17. 2026-07-04 06:29 UTCEPSS rescore
  18. 2026-07-04 06:29 UTCEPSS rescore
  19. 2026-06-30 23:21 UTCEPSS rescore
  20. 2026-06-30 23:21 UTCEPSS rescore
  21. 2026-06-29 14:05 UTCEPSS rescore
  22. 2026-06-28 04:55 UTCEPSS rescore
  23. 2026-06-24 14:04 UTCEPSS rescore
  24. 2026-06-24 14:04 UTCEPSS rescore
  25. 2026-06-24 06:21 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
Show 18 more
  1. 2026-06-23 21:31 UTCEPSS rescore
  2. 2026-06-23 21:31 UTCEPSS rescore
  3. 2026-06-16 17:51 UTCEPSS rescore
  4. 2026-06-16 17:51 UTCEPSS rescore
  5. 2026-06-15 17:47 UTCEPSS rescore
  6. 2026-06-12 23:11 UTCEPSS rescore
  7. 2026-06-12 23:10 UTCEPSS rescore
  8. 2026-06-10 13:21 UTCEPSS rescore
  9. 2026-05-31 00:15 UTCEPSS rescore
  10. 2026-05-31 00:15 UTCEPSS rescore
  11. 2026-05-29 13:43 UTCEPSS rescore
  12. 2026-05-27 13:39 UTCEPSS rescore
  13. 2026-05-27 13:39 UTCEPSS rescore
  14. 2026-05-26 07:18 UTCEPSS rescore
  15. 2026-05-26 07:18 UTCEPSS rescore
  16. 2026-05-26 07:18 UTCEPSS rescore
  17. 2026-05-24 18:42 UTCEG score recompute
  18. 2026-05-24 18:42 UTCGHSA enrichment

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCPumpkinBridge/CVE-2023-4542
    First seen Aug 9, 2023
    Open source ↗
  • Nucleihttp/cves/2023/CVE-2023-4542.yaml
    First seen Jan 1, 2023

    D-Link DAR-8000-10 - Command Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-4542?
CVE-2023-4542 is a critical vulnerability published on August 25, 2023. A vulnerability was found in D-Link DAR-8000-10 up to 20230809. It has been classified as critical. This affects an unknown part of the file /app/sys1.php. The manipulation of the argument cmd with the input id leads to os command injection. It is possible to initiate the attack remotely. The…
When was CVE-2023-4542 disclosed?
CVE-2023-4542 was first published in the National Vulnerability Database on August 25, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-4542 actively exploited?
CVE-2023-4542 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87% probability of exploitation in the next 30 days, which ranks it in the top 0.3% of all scored CVEs.
What is the CVSS score of CVE-2023-4542?
CVE-2023-4542 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-4542?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-4542, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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