How severe is CVE-2017-7269?

CVE-2017-7269 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2017-7269?

Affected package information for CVE-2017-7269 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2017-7269?

No fixed version has been published for CVE-2017-7269 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2017-7269 actively exploited in the wild?

Yes. There are 41 known exploit references for CVE-2017-7269, including 2 documented proof-of-concept exploits on Exploit-DB and 29 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2017-7269?

CVE-2017-7269 has an EPSS (Exploit Prediction Scoring System) score of 94.4%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2017-7269 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2017-7269 (Microsoft Windows Server Buffer Overflow Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2021-11-03. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-05-03. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2017-7269?

CVE-2017-7269 is classified as CWE-120 (CWE-120). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2017-7269?

CVE-2017-7269 affects microsoft internet information services (1 version, e.g. 6.0). Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2017-7269?

A Nuclei detection template exists for CVE-2017-7269, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2017-7269 published, and has it been updated?

CVE-2017-7269 was published on March 27, 2017 and was last updated on April 21, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2021-11-03 — agencies required to remediate by 2022-05-03

CVE-2017-7269

CRITICAL

Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server 2003 R2 allows remote attackers to…

Published

Mar 27, 2017

Updated

Apr 21, 2026

Affected

0 pkgs

Patched

None yet

Exploits

41 known

EPSS Exploitation Probability

via FIRST.org ↗

94.4%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server 2003 R2 allows remote attackers to execute arbitrary code via a long header beginning with "If: <http://" in a PROPFIND request, as exploited in the wild in July or August 2016.

Affected Products

1 product · 1 configurations

Application

internet information servicesmicrosoft

1 version

6.0

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-41738remotewindows

Microsoft IIS 6.0 - WebDAV 'ScStoragePathFromUrl' Remote Buffer Overflow

by Zhiniang Peng & Chen Wu · Mar 27, 2017

Exploit-DB Source

EDB-41992remotewindows✓ Verified

Microsoft IIS - WebDav 'ScStoragePathFromUrl' Remote Overflow (Metasploit)

by Metasploit · May 11, 2017

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2017-7269 in your stack?

O3 detects CVE-2017-7269 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

9.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE Classification

Weaponization

Timeline

First exploit

Mar 27, 2017

Same day as disclosure — rapid exploitation

Disclosed

Mar 27, 2017

KEV added

Nov 3, 2021

Last updated

Apr 21, 2026

Identifiers

CVE-2017-7269

Data from OSV.dev, enriched by O3 Security. Refreshed hourly.