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CVE-2018-5546

25
FAUCET Score

CVE-2018-5546 describes a privilege escalation vulnerability in the F5 BIG-IP APM client for Linux and macOS, affecting versions prior to 7.1.7.1. The svpn and policyserver components, running as privileged processes, allow an unprivileged local user to gain ownership of root-owned files. This high-severity vulnerability (CVSS 7.8) has a low attack complexity and can lead to sensitive information disclosure, data manipulation, or full super-user privileges on the local client host. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.1.5, <= 7.1.7CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_access_policy_manager_client:*:*:*:*:*:*:*:*
>= 12.1.0, <= 12.1.3CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

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
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
37.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 77th 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

github.com / mirchr/security-research/blob/master/vulnerabilities/F5/CVE-2018-5529.txt
ExploitThird Party Advisory
support.f5.com / csp/article/K54431371
Vendor Advisory
securitytracker.com / id/1041510
Broken Link