CVE-2010-4816

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 2.4% (83rd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
7.5EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

No fix has been recorded since the CVE record was published in 2021 — use a compensating control (WAF / firewall / segmentation) and check the vendor's advisory.

It was found in FreeBSD 8.0, 6.3 and 4.9, and OpenBSD 4.6 that a null pointer dereference in ftpd/popen.c may lead to remote denial of service of the ftpd service.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
39
EG Risk 39/100

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 (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation2.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability30% × 15%
EchelonGraph's default before algorithm v3.4: CISA had not published Automatable for this CVE.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix has been recorded since the CVE record was published in 2021. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and check the vendor's advisory for a fix.
EPSS PROB
2.4%
EPSS %ILE
83rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track or Attend at high (mission-essential systems).

No fix has been recorded since the CVE record was published in 2021. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and check the vendor's advisory for a fix.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

June 22, 2021

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Sep 29, 2026
No fix on record since 2021.
Web page

oss-sec: Re: CVE-request: FreeBSD/NetBSD/OpenBSD(?) ftpd remote crash (2010)

https://seclists.org/oss-sec/2011/q3/284
Web page

Full Disclosure: FreeBSD and OpenBSD ftpd bug (not exploitable?)

https://seclists.org/fulldisclosure/2010/Mar/117
Web page

144761 – FTPD bug remote crash

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=144761

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 18× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 78 of 107 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 22 repeat rows among the latest 100 are merged into the row they repeat. The 29 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 13:38 UTCEPSS rescoreEPSS 2.4% · 83rd percentile
  2. 2026-10-10 19:54 UTCEPSS rescoreEPSS 2.4% · 83rd percentile
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  9. 2026-09-30 14:58 UTCEPSS rescoreEPSS 2.4% · 83rd percentile
  10. 2026-09-29 08:12 UTCEG score recompute
  11. 2026-09-28 13:44 UTCEPSS rescoreEPSS 2.4% · 83rd percentile
  12. 2026-09-27 13:39 UTCEPSS rescoreEPSS 2.4% · 83rd percentile
  13. 2026-09-26 15:52 UTCEPSS rescoreEPSS 2.4% · 83rd percentile
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  1. 2026-08-09 13:41 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  2. 2026-08-08 16:31 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  3. 2026-08-06 13:41 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
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  8. 2026-07-23 14:14 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  9. 2026-07-23 01:04 UTCEG score recompute
  10. 2026-07-23 00:39 UTCEG score recompute
  11. 2026-07-23 00:07 UTCEG score recompute
  12. 2026-07-22 21:46 UTCEG score recompute
  13. 2026-07-22 14:03 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  14. 2026-07-21 15:21 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
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  20. 2026-07-15 01:55 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  21. 2026-07-13 22:25 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  22. 2026-07-13 06:08 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
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  24. 2026-07-08 15:10 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
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Frequently asked(5)

What is CVE-2010-4816?
CVE-2010-4816 is a high-severity vulnerability; its CVE record was published on June 22, 2021. It was found in FreeBSD 8.0, 6.3 and 4.9, and OpenBSD 4.6 that a null pointer dereference in ftpd/popen.c may lead to remote denial of service of the ftpd service.
When was the CVE record for CVE-2010-4816 published?
The CVE record for CVE-2010-4816 was published on June 22, 2021. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2010-4816 actively exploited?
CVE-2010-4816 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.4% probability of exploitation in the next 30 days (83rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2010-4816?
CVE-2010-4816 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2010-4816?
No fix for CVE-2010-4816 has been recorded since its CVE record was published in 2021. Restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and check the vendor's advisory for a fix.

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