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CVE-2017-1000420

25
FAUCET Score

CVE-2017-1000420 describes a symlink traversal vulnerability in Syncthing versions 0.14.33 and older, allowing an unauthenticated attacker to achieve arbitrary file overwrite. This vulnerability carries a high CVSS score of 7.5, indicating a severe impact on integrity (I:H) with low attack complexity (AC:L) and no user interaction required (UI:N). Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.14.33CPE matchmatch criteria
cpe:2.3:a:syncthing:syncthing:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.51%
Probability of exploitation in next 30 days
EPSS Percentile
71.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0151 is in the 53rd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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

Vendor Advisories (1)

goGHSA-28xp-g7f6-7mhfhigh

Syncthing vulnerable to symlink traversal and arbitrary file overwrite

May 14, 2022

References

github.com / syncthing/syncthing/issues/4286
Issue TrackingPatchThird Party Advisory