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CVE-2016-9462

14
FAUCET Score

CVE-2016-9462 describes an improper privilege verification vulnerability in Nextcloud Server before 9.0.52 and ownCloud Server before 9.0.4. A user with only read-only access to a shared file could exploit this flaw to restore older versions of that file, effectively bypassing intended access controls. With a CVSS score of 4.3 (Medium), this vulnerability has a network attack vector and low attack complexity, leading to a potential impact of unauthorized information modification (I:L). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.0.52CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
< 9.0.4CPE matchmatch criteria
cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.87%
Probability of exploitation in next 30 days
EPSS Percentile
77.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0187 is in the 90th percentile among its peer group of 21,954 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / nextcloud/server/commit/1208953ba1d4d55a18a639846bbcdd66a2d5bc5e
Issue TrackingPatchThird Party Advisory
github.com / owncloud/core/commit/23383080731d092e079986464a8c4c9ffcb79f4c
Issue TrackingPatchThird Party Advisory
github.com / owncloud/core/commit/3b056fa68ce502ceb0db9b446dab3b9e7b10dd13
Issue TrackingPatchThird Party Advisory
github.com / owncloud/core/commit/c93eca49c32428ece03dd67042772d5fa62c8d6e
Issue TrackingPatchThird Party Advisory
github.com / owncloud/core/commit/d31720b6f1e8c8dfeb5e8805ab35ad7c8000b2f1
Issue TrackingPatchThird Party Advisory
hackerone.com / reports/146067
ExploitThird Party Advisory
nextcloud.com / security/advisory
PatchVendor Advisory
owncloud.org / security/advisory
PatchVendor Advisory
securityfocus.com / bid/97285
Third Party AdvisoryVDB Entry