CVE-2013-4659

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 14%CVSS: 9.8Exploit: NoneExposed: 0

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

Buffer overflow in Broadcom ACSD allows remote attackers to execute arbitrary code via a long string to TCP port 5916. This component is used on routers of multiple vendors including ASUS RT-AC66U and TRENDnet TEW-812DRU.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: 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%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
96.1%
KEV
Not listed

Published

March 14, 2017

Last Modified

May 13, 2026

Advisory Details (2)

Auto-updated Jun 21, 2026
No patch confirmed yet.
generic

Packet Storm

https://packetstormsecurity.com/files/122562/ASUS-RT-AC66U-ACSD-Remote-Root-Buffer-Overflow.html
generic

SO HOpelessly Broken » Linux Magazine

http://www.linux-magazine.com/Issues/2014/161/Security-and-SOHO-Routers

Data Freshness Timeline

(refreshed 11× in last 7d / 32× 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 101 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-27133
    First seen Jul 27, 2013

    ASUS RT-AC66U - 'acsd' Remote Command Execution

    Open source ↗

Frequently asked(5)

What is CVE-2013-4659?
CVE-2013-4659 is a critical vulnerability published on March 14, 2017. Buffer overflow in Broadcom ACSD allows remote attackers to execute arbitrary code via a long string to TCP port 5916. This component is used on routers of multiple vendors including ASUS RT-AC66U and TRENDnet TEW-812DRU.
When was CVE-2013-4659 disclosed?
CVE-2013-4659 was first published in the National Vulnerability Database on March 14, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-4659 actively exploited?
CVE-2013-4659 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2013-4659?
CVE-2013-4659 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2013-4659?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-4659, 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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