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CVE-2020-15396

20
FAUCET Score

CVE-2020-15396 is a local privilege escalation vulnerability affecting HylaFAX+ through version 7.0.2 and HylaFAX Enterprise, as well as products like fedoraproject and openSUSE. The vulnerability, rated 7.8 HIGH, allows a local attacker to achieve root privileges by exploiting a race condition during the faxsetup utility's chown operation on user-owned directories. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential impact includes full compromise of confidentiality, integrity, and availability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.0.2CPE matchmatch criteria
cpe:2.3:a:hylafax\+_project:hylafax\+:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:ifax:hylafax_enterprise:-:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
31.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 70th percentile among its peer group of 16,994 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.opensuse.org / opensuse-security-announce/2020-08/msg00039.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-08/msg00040.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-08/msg00046.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-09/msg00054.html
Mailing ListThird Party Advisory
bugzilla.suse.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/J52QFVREJWJ35YSEEDDRMZQ2LM2H2WE6
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/Y46FOVJUS5SO44A2VEKR7DXEHTI4WK5L
security.gentoo.org / glsa/202007-06
Third Party Advisory
sourceforge.net / p/hylafax/HylaFAX+/2534
PatchThird Party Advisory