CVE-2016-0051

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekWeaponized

Also known asEUVD-2016-0089 (ENISA EUVD) · GHSA-2g29-x8pf-59pq (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan mitigationNo fix on record since 2016: if the vendor still supports the product, apply the fixed version it names within your standard update timelines at low or medium mission impact and sooner than that at high; if it no longer does, isolate the affected system on your normal schedule at low or medium mission impact and sooner than that at high, or retire the product (the SSVC decision on this page).
  • Public exploit code is available (Metasploit, Exploit-DB, marked verified by Exploit-DB, other public proof-of-concept code)
CISA-KEV: Not listedEPSS PROB: 23%CVSS: 7.8Exploit: Metasploit · Exploit-DB (verified) · other public PoCExposed services: Not assessed

No fix has been recorded since the CVE record was published in 2016 — if the vendor still supports the product, apply the fixed version it names; if not, isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

The WebDAV client in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows local users to gain privileges via a crafted application, aka "WebDAV Elevation of Privilege Vulnerability."

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
61
EG Risk 61/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation65% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 2 (Weaponized): a constant, not a probability.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). 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 2016. If the vendor still supports the product, apply the fixed version it names within your standard update timelines at low or medium mission impact and sooner than that at high; if it no longer does, isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) on your normal schedule at low or medium mission impact and sooner than that at high, or retire the product.
EPSS PROB
23%
EPSS %ILE
97th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
23% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix has been recorded since the CVE record was published in 2016. If the vendor still supports the product, apply the fixed version it names within your standard update timelines at low or medium mission impact and sooner than that at high; if it no longer does, isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) on your normal schedule at low or medium mission impact and sooner than that at high, or retire the product.

Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). 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

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

February 10, 2016

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Sep 30, 2026
No fix on record since 2016.
Web page

Microsoft Windows 7 SP1 - 'mrxdav.sys' WebDAV Privilege Escalation (MS16-016) (Metasploit) - Windows local Exploit

https://www.exploit-db.com/exploits/40085/
Web page

Microsoft Windows 7 - 'WebDAV' Local Privilege Escalation (MS16-016) (2) - Windows local Exploit

https://www.exploit-db.com/exploits/39788/
Web page

Microsoft Windows 7 SP1 (x86) - 'WebDAV' Local Privilege Escalation (MS16-016) (1) - Windows_x86 local Exploit

https://www.exploit-db.com/exploits/39432/
Web page

Microsoft Security Bulletin MS16-016 - Important | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-016

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 35× 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 92 of 160 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. 8 repeat rows among the latest 100 are merged into the row they repeat. The 68 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-31 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
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  4. 2026-10-29 07:02 UTCEG score recompute
  5. 2026-10-29 07:02 UTCGHSA enrichmentGHSA-2g29-x8pf-59pq · GitHub severity HIGH · GitHub CVSS 7.8
  6. 2026-10-28 16:26 UTCEPSS rescoreEPSS 23% · 97th percentile
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  14. 2026-10-22 08:43 UTCEG score recompute
  15. 2026-10-22 08:43 UTCGHSA enrichmentGHSA-2g29-x8pf-59pq · GitHub severity HIGH · GitHub CVSS 7.8
  16. 2026-10-21 16:26 UTCEPSS rescoreEPSS 23% · 97th percentile
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  1. 2026-10-12 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
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  55. 2026-07-23 01:20 UTCEG score recompute
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Publicly available exploits

(6 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 3 Exploit-DB entries, 2 GitHub PoCs). No fix has been recorded since the CVE record was published in 2016. If the vendor still supports the product, apply the fixed version it names; if it no longer does, isolate the affected system or retire the product.

  • Exploit-DBEDB-40085✓ verified
    Published Jul 11, 2016

    Microsoft Windows 7 SP1 - 'mrxdav.sys' WebDAV Privilege Escalation (MS16-016) (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/local/ms16_016_webdav✓ verified
    Published Jul 6, 2016

    MS16-016 mrxdav.sys WebDav Local Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-39788✓ verified
    Published May 9, 2016

    Microsoft Windows 7 - 'WebDAV' Local Privilege Escalation (MS16-016) (2)

    Open source ↗
  • Exploit-DBEDB-39432✓ verified
    Published Feb 10, 2016

    Microsoft Windows 7 SP1 (x86) - 'WebDAV' Local Privilege Escalation (MS16-016) (1)

    Open source ↗
  • GitHub PoChexx0r/CVE-2016-0051
    Published May 8, 2016
    Open source ↗
  • GitHub PoCkoczkatamas/CVE-2016-0051
    Published Feb 9, 2016

    EoP (Win7) & BSoD (Win10) PoC for CVE-2016-0051 (MS-016)

    Open source ↗

Frequently asked(5)

What is CVE-2016-0051?
CVE-2016-0051 is a high-severity vulnerability; its CVE record was published on February 10, 2016. The WebDAV client in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows local users to gain privileges via a crafted application, aka "WebDAV Elevation of Privilege…
When was CVE-2016-0051 made public?
CVE-2016-0051 was made public on February 9, 2016: that is the date its CVE record's CNA, Microsoft Corporation, gives for when the vulnerability was made public. The CVE record itself was published on February 10, 2016. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2016-0051 actively exploited?
CVE-2016-0051 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: a Metasploit module exists for it, and Exploit-DB marks a public exploit for it as verified. EchelonGraph does not test whether exploit code works. FIRST EPSS estimates a 23% probability of exploitation in the next 30 days (97th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2016-0051?
CVE-2016-0051 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2016-0051?
No fix for CVE-2016-0051 has been recorded since its CVE record was published in 2016. If the vendor still supports the product, apply the fixed version it names; if it no longer does, isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2016-0051

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