HOMEVULNERABILITIESCVE-2020-14977
HIGH

CVE-2020-14977

NVD-CWE-noinfoPublished: June 23, 2020· Updated: Jun 17, 2026

8.1
CVSS v3.1

Official Description

An issue was discovered in F-Secure SAFE 17.7 on macOS. The XPC services use the PID to identify the connecting client, which allows an attacker to perform a PID reuse attack and connect to a privileged XPC service, and execute privileged commands on the system. NOTE: the attacker needs to execute code on an already compromised machine.

NVD Source

Technical Analysis

CVE-2020-14977 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

f-secure1 product(s)
safe
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://theevilbit.github.io/posts/
ADVISORYhttps://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame
ADVISORYhttps://www.f-secure.com/en/home/products/safe
ADVISORYhttps://theevilbit.github.io/posts/
ADVISORYhttps://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame
ADVISORYhttps://www.f-secure.com/en/home/products/safe

All References (6)

→
https://theevilbit.github.io/posts/Exploit · Third Party Advisory
→
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fameVendor Advisory
→
https://www.f-secure.com/en/home/products/safeVendor Advisory
→
https://theevilbit.github.io/posts/Exploit · Third Party Advisory
→
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fameVendor Advisory
→
https://www.f-secure.com/en/home/products/safeVendor Advisory

Quick Facts

CVE IDCVE-2020-14977
CVSS Score8.1 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedJun 23, 2020

Related CVEs (NVD-CWE-noinfo)

CVE-2021-46250
10.0
CVE-2011-0261
10.0
CVE-2009-3092
10.0
CVE-2005-3059
10.0
CVE-2009-3091
10.0
CVE-2011-3160
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-14977 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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