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CVE-2014-3423

12
FAUCET Score

CVE-2014-3423 describes a local file overwrite vulnerability in GNU Emacs 24.3 and earlier, specifically within the lisp/net/browse-url.el component. An attacker can exploit this flaw via a symlink attack on a temporary /tmp/Mosaic.##### file, potentially allowing them to overwrite arbitrary files on the system. With a CVSS score of 3.3, this vulnerability has a low severity, requiring local access and medium attack complexity, with impacts limited to partial integrity and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3CPE matchmatch criteria
cpe:2.3:o:mageia_project:mageia:3:*:*:*:*:*:*:*
4CPE matchmatch criteria
cpe:2.3:o:mageia_project:mageia:4:*:*:*:*:*:*:*
<= 24.3CPE matchmatch criteria
cpe:2.3:a:gnu:emacs:*:*:*:*:*:*:*:*
20.0CPE matchmatch criteria
cpe:2.3:a:gnu:emacs:20.0:*:*:*:*:*:*:*
20.1CPE matchmatch criteria
cpe:2.3:a:gnu:emacs:20.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

AV:L/AC:M/Au:N/C:N/I:P/A:P

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 46th percentile among its peer group of 747 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Vendor Patches (3)

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-2014-3423Low

emacs: multiple temporary file issues

May 5, 2014

References

advisories.mageia.org / MGASA-2014-0250.html
debbugs.gnu.org / cgi/bugreport.cgi
lists.gnu.org / archive/html/emacs-diffs/2014-05/msg00057.html
openwall.com / lists/oss-security/2014/05/07/7
mandriva.com / security/advisories