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CVE-2020-15397

25
FAUCET Score

CVE-2020-15397 is a high-severity vulnerability affecting HylaFAX+ through version 7.0.2 and HylaFAX Enterprise, where scripts execute binaries from directories writable by unprivileged users. This allows unprivileged users to execute arbitrary code with the privileges of the calling user, often root, leading to full system compromise. The vulnerability has a CVSS score of 7.8 (High) due to its low attack complexity and high impact on confidentiality, integrity, and availability. There is currently no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

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:-:*:*:*:*:*:*:*

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
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 82nd percentile among its peer group of 17,061 CVEs.

Social Chatter

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
lists.opensuse.org / opensuse-security-announce/2020-08/msg00040.html
lists.opensuse.org / opensuse-security-announce/2020-08/msg00046.html
lists.opensuse.org / opensuse-security-announce/2020-09/msg00054.html
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
sourceforge.net / p/hylafax/HylaFAX+/2534
PatchThird Party Advisory