CVE-2023-20118

CRITICALNVD 6.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-03-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 6.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 54%CVSS: 6.5Exploit: cisa kev · ssvc active · epss top5pct · epss highExposed: 0

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

A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device. Cisco has not and will not release software updates that address this vulnerability. However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section. {{value}} ["%7b%7bvalue%7d%7d"])}]]

CVSS v3
6.5
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
54%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

April 13, 2023

Last Modified

October 28, 2025

Advisory Details (2)

Auto-updated Jun 13, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20118
generic🔴 Active Exploitation

Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers Vulnerabilities

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 39× in last 7d / 215× 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.

Showing the most recent 100 of 444 total refreshes for this CVE.

  1. 2026-07-26 22:36 UTCGHSA enrichment
  2. 2026-07-26 18:30 UTCEG score recompute
  3. 2026-07-26 18:29 UTCGHSA enrichment
  4. 2026-07-26 14:52 UTCEPSS rescore
  5. 2026-07-26 14:52 UTCEPSS rescore
  6. 2026-07-26 14:22 UTCEG score recompute
  7. 2026-07-26 14:22 UTCGHSA enrichment
  8. 2026-07-26 10:14 UTCGHSA enrichment
  9. 2026-07-26 06:05 UTCGHSA enrichment
  10. 2026-07-26 01:57 UTCEG score recompute
  11. 2026-07-26 01:57 UTCGHSA enrichment
  12. 2026-07-25 14:16 UTCEPSS rescore
  13. 2026-07-25 14:16 UTCEPSS rescore
  14. 2026-07-24 14:15 UTCEPSS rescore
  15. 2026-07-23 02:18 UTCEG score recompute
  16. 2026-07-22 23:05 UTCEG score recompute
  17. 2026-07-22 20:34 UTCGHSA enrichment
  18. 2026-07-22 19:40 UTCCISA KEV update
  19. 2026-07-22 16:26 UTCEG score recompute
  20. 2026-07-22 16:26 UTCGHSA enrichment
  21. 2026-07-22 14:06 UTCEPSS rescore
  22. 2026-07-22 12:19 UTCGHSA enrichment
  23. 2026-07-22 08:12 UTCGHSA enrichment
  24. 2026-07-22 04:05 UTCGHSA enrichment
  25. 2026-07-21 23:58 UTCGHSA enrichment
Show 75 more
  1. 2026-07-21 19:51 UTCGHSA enrichment
  2. 2026-07-21 15:43 UTCGHSA enrichment
  3. 2026-07-21 14:37 UTCCISA KEV update
  4. 2026-07-21 11:35 UTCGHSA enrichment
  5. 2026-07-21 07:26 UTCGHSA enrichment
  6. 2026-07-21 03:20 UTCGHSA enrichment
  7. 2026-07-20 23:13 UTCGHSA enrichment
  8. 2026-07-20 19:06 UTCEG score recompute
  9. 2026-07-20 19:06 UTCGHSA enrichment
  10. 2026-07-20 17:05 UTCEPSS rescore
  11. 2026-07-20 14:59 UTCGHSA enrichment
  12. 2026-07-20 10:52 UTCGHSA enrichment
  13. 2026-07-20 06:46 UTCGHSA enrichment
  14. 2026-07-20 02:39 UTCGHSA enrichment
  15. 2026-07-19 22:31 UTCGHSA enrichment
  16. 2026-07-19 18:25 UTCEG score recompute
  17. 2026-07-19 18:25 UTCGHSA enrichment
  18. 2026-07-19 14:29 UTCEPSS rescore
  19. 2026-07-19 14:29 UTCEPSS rescore
  20. 2026-07-19 14:18 UTCGHSA enrichment
  21. 2026-07-19 10:12 UTCGHSA enrichment
  22. 2026-07-19 06:05 UTCEG score recompute
  23. 2026-07-19 06:05 UTCGHSA enrichment
  24. 2026-07-19 02:27 UTCEPSS rescore
  25. 2026-07-19 02:27 UTCEPSS rescore
  26. 2026-07-19 01:58 UTCGHSA enrichment
  27. 2026-07-18 21:52 UTCGHSA enrichment
  28. 2026-07-18 17:44 UTCGHSA enrichment
  29. 2026-07-18 13:37 UTCGHSA enrichment
  30. 2026-07-18 09:30 UTCGHSA enrichment
  31. 2026-07-18 05:24 UTCGHSA enrichment
  32. 2026-07-18 01:17 UTCGHSA enrichment
  33. 2026-07-17 21:10 UTCGHSA enrichment
  34. 2026-07-17 17:03 UTCGHSA enrichment
  35. 2026-07-17 12:56 UTCGHSA enrichment
  36. 2026-07-17 08:49 UTCEG score recompute
  37. 2026-07-17 08:49 UTCGHSA enrichment
  38. 2026-07-17 04:42 UTCGHSA enrichment
  39. 2026-07-17 00:34 UTCGHSA enrichment
  40. 2026-07-16 20:27 UTCGHSA enrichment
  41. 2026-07-16 17:04 UTCCISA KEV update
  42. 2026-07-16 17:01 UTCEPSS rescore
  43. 2026-07-16 17:01 UTCEPSS rescore
  44. 2026-07-16 16:20 UTCGHSA enrichment
  45. 2026-07-16 12:13 UTCGHSA enrichment
  46. 2026-07-16 08:06 UTCGHSA enrichment
  47. 2026-07-16 04:00 UTCGHSA enrichment
  48. 2026-07-15 23:53 UTCGHSA enrichment
  49. 2026-07-15 19:47 UTCGHSA enrichment
  50. 2026-07-15 16:56 UTCEPSS rescore
  51. 2026-07-15 16:49 UTCCISA KEV update
  52. 2026-07-15 15:40 UTCGHSA enrichment
  53. 2026-07-15 15:04 UTCCISA KEV update
  54. 2026-07-15 11:33 UTCGHSA enrichment
  55. 2026-07-15 07:27 UTCGHSA enrichment
  56. 2026-07-15 03:20 UTCGHSA enrichment
  57. 2026-07-15 01:58 UTCEPSS rescore
  58. 2026-07-15 01:58 UTCEPSS rescore
  59. 2026-07-14 23:12 UTCGHSA enrichment
  60. 2026-07-14 19:04 UTCGHSA enrichment
  61. 2026-07-14 18:05 UTCCISA KEV update
  62. 2026-07-14 14:54 UTCGHSA enrichment
  63. 2026-07-14 10:46 UTCGHSA enrichment
  64. 2026-07-14 06:39 UTCGHSA enrichment
  65. 2026-07-14 02:31 UTCGHSA enrichment
  66. 2026-07-13 22:28 UTCEPSS rescore
  67. 2026-07-13 22:28 UTCEPSS rescore
  68. 2026-07-13 22:25 UTCGHSA enrichment
  69. 2026-07-13 18:18 UTCGHSA enrichment
  70. 2026-07-13 17:07 UTCCISA KEV update
  71. 2026-07-13 14:10 UTCGHSA enrichment
  72. 2026-07-13 10:02 UTCGHSA enrichment
  73. 2026-07-13 06:11 UTCEPSS rescore
  74. 2026-07-13 05:48 UTCGHSA enrichment
  75. 2026-07-13 01:41 UTCGHSA enrichment

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Frequently asked(6)

What is CVE-2023-20118?
CVE-2023-20118 is a critical vulnerability published on April 13, 2023. A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user…
When was CVE-2023-20118 disclosed?
CVE-2023-20118 was first published in the National Vulnerability Database on April 13, 2023, with the most recent update on October 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-20118 actively exploited?
Yes. CISA added CVE-2023-20118 to the Known Exploited Vulnerabilities catalog on March 3, 2025, affecting Cisco Small Business RV Series Routers. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-20118?
CVE-2023-20118 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-20118?
CVE-2023-20118 affects Cisco Small Business RV Series Routers. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-20118?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-20118, 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.

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