CVE-2018-5503: f5 networks, inc. big-ip pem Improper Input Validation
CVSS: 7.5v3.0HighModified
Published 22-03-2018Last modified 16-09-2024
Vulnerability summary
CVE-2018-5503 is a high (CVSS 7.5) Improper Input Validation vulnerability in f5 networks, inc. big-ip pem. EPSS estimates a 1.68% chance of exploitation in the next 30 days, higher than 76.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
1.68%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 22-03-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
On F5 BIG-IP versions 13.0.0 - 13.1.0.3 or 12.0.0 - 12.1.3.1, TMM may restart when processing a specifically crafted page through a virtual server with an associated PEM policy that has content insertion as an action.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.68%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.68% on 19-09-2026
19-09-202619-10-2026
EPSS score1.68%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
F51 product
- big-ip_policy_enforcement_manager≥ 12.0.0, < 12.1.3.2 | ≥ 13.0.0, < 13.1.0.4
F5 networks, inc.1 product
- big-ip pem13.0.0 - 13.1.0.3 | 12.0.0 - 12.1.3.1
2 vendors · 2 products