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CVE-2017-1000383

21
FAUCET Score

CVE-2017-1000383 describes a vulnerability in GNU Emacs versions, including 25.3.1, where backup save files (e.g., "[ORIGINAL_FILENAME]~") are created without respecting the user's umask settings. This can lead to sensitive information disclosure as these files may become world-readable or otherwise accessible beyond the user's intent. The vulnerability has a CVSSv3 score of 5.5 (Medium), indicating a low attack complexity and local privileges required, with a high impact on confidentiality. 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
<= 25.3.0CPE matchmatch criteria
cpe:2.3:a:gnu:emacs:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 89th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: emacs
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: emacs
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: emacs
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: emacs

Vendor Advisories (1)

redhatCVE-2017-1000383Low

emacs: Ignores umask when creating a swap file

Oct 31, 2017

References

openwall.com / lists/oss-security/2017/10/31/1
Mailing ListThird Party Advisory
securityfocus.com / bid/101671
Third Party AdvisoryVDB Entry